Merge pull request #8535 from thinkyhead/bf2_more_mesh_G26

[2.0.x]  Adapt G26 to work for all meshes

.travis.yml

@@ -72,7 +72,7 @@ script:
   # Test a probeless build of AUTO_BED_LEVELING_UBL
   #
   - restore_configs
-  - opt_enable AUTO_BED_LEVELING_UBL UBL_G26_MESH_EDITING ENABLE_LEVELING_FADE_HEIGHT EEPROM_SETTINGS G3D_PANEL
+  - opt_enable AUTO_BED_LEVELING_UBL G26_MESH_EDITING ENABLE_LEVELING_FADE_HEIGHT EEPROM_SETTINGS G3D_PANEL
   - opt_enable_adv CUSTOM_USER_MENUS I2C_POSITION_ENCODERS BABYSTEPPING
   - build_marlin_pio ${TRAVIS_BUILD_DIR} ${TEST_PLATFORM}
   #
@@ -101,7 +101,7 @@ script:
   # Test MESH_BED_LEVELING feature, with LCD
   #
   - restore_configs
-  - opt_enable MESH_BED_LEVELING MESH_G28_REST_ORIGIN LCD_BED_LEVELING ULTIMAKERCONTROLLER
+  - opt_enable MESH_BED_LEVELING G26_MESH_EDITING MESH_G28_REST_ORIGIN LCD_BED_LEVELING ULTIMAKERCONTROLLER
   - build_marlin_pio ${TRAVIS_BUILD_DIR} ${TEST_PLATFORM}
   #
   # Test MINIRAMBO for PWM_MOTOR_CURRENT
@@ -115,7 +115,7 @@ script:
   #
   - restore_configs
   - opt_set MOTHERBOARD BOARD_MINIRAMBO
-  - opt_enable PROBE_MANUALLY AUTO_BED_LEVELING_BILINEAR LCD_BED_LEVELING ULTIMAKERCONTROLLER
+  - opt_enable PROBE_MANUALLY AUTO_BED_LEVELING_BILINEAR G26_MESH_EDITING LCD_BED_LEVELING ULTIMAKERCONTROLLER
   - opt_enable EEPROM_SETTINGS EEPROM_CHITCHAT M100_FREE_MEMORY_WATCHER M100_FREE_MEMORY_DUMPER M100_FREE_MEMORY_CORRUPTOR INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT
   - opt_enable ULTIMAKERCONTROLLER SDSUPPORT
   - opt_enable PRINTCOUNTER NOZZLE_PARK_FEATURE NOZZLE_CLEAN_FEATURE PCA9632 USE_XMAX_PLUG

Marlin/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/default/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration.h

@@ -906,6 +906,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -972,14 +984,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/AliExpress/CL-260/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Anet/A6/Configuration.h

@@ -1005,6 +1005,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -1095,14 +1107,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Anet/A8/Configuration.h

@@ -892,6 +892,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -958,14 +970,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Azteeg/X5GT/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/BQ/Hephestos/Configuration.h

@@ -877,6 +877,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -943,14 +955,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/BQ/Hephestos_2/Configuration.h

@@ -887,6 +887,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -953,14 +965,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/BQ/WITBOX/Configuration.h

@@ -877,6 +877,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -943,14 +955,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Cartesio/Configuration.h

@@ -885,6 +885,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -951,14 +963,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Creality/CR-10/Configuration.h

@@ -896,6 +896,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -962,14 +974,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Felix/Configuration.h

@@ -868,6 +868,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -934,14 +946,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Felix/DUAL/Configuration.h

@@ -868,6 +868,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -934,14 +946,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration.h

@@ -883,6 +883,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -949,14 +961,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 25
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Geeetech/GT2560/Configuration.h

@@ -901,6 +901,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -967,14 +979,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Geeetech/I3_Pro_X-GT2560/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Infitary/i3-M508/Configuration.h

@@ -890,6 +890,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -956,14 +968,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Malyan/M150/Configuration.h

@@ -914,6 +914,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -980,14 +992,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Micromake/C1/basic/Configuration.h

@@ -890,6 +890,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -956,14 +968,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration.h

@@ -890,6 +890,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -956,14 +968,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Mks/Sbase/Configuration.h

@@ -887,6 +887,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -953,14 +965,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/RepRapWorld/Megatronics/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/RigidBot/Configuration.h

@@ -884,6 +884,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -950,14 +962,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/SCARA/Configuration.h

@@ -898,6 +898,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -964,14 +976,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/STM32F10/Configuration.h

@@ -889,6 +889,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -955,14 +967,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Sanguinololu/Configuration.h

@@ -917,6 +917,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -983,14 +995,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/TinyBoy2/Configuration.h

@@ -942,6 +942,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -1008,14 +1020,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/UltiMachine/Archim2/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  //#define UBL_G26_MESH_VALIDATION // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Velleman/K8200/Configuration.h

@@ -916,6 +916,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -982,14 +994,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Velleman/K8400/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/Velleman/K8400/Dual-head/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/adafruit/ST7565/Configuration.h

@@ -886,6 +886,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -952,14 +964,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration.h

@@ -1016,6 +1016,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   //#define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -1086,14 +1098,6 @@
   #define UBL_PROBE_PT_3_X _PX(DELTA_PROBEABLE_RADIUS, 240)
   #define UBL_PROBE_PT_3_Y _PY(DELTA_PROBEABLE_RADIUS, 240)
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration.h

@@ -1016,6 +1016,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   //#define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -1080,14 +1092,6 @@
   #define UBL_PROBE_PT_3_X _PX(DELTA_PROBEABLE_RADIUS, 240)
   #define UBL_PROBE_PT_3_Y _PY(DELTA_PROBEABLE_RADIUS, 240)
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/delta/generic/Configuration.h

@@ -1004,6 +1004,17 @@
   // The height can be set with M420 Z<height>
   //#define ENABLE_LEVELING_FADE_HEIGHT
 
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
   // Set the boundaries for probing (where the probe can reach).
   #define DELTA_PROBEABLE_RADIUS (DELTA_PRINTABLE_RADIUS - 10)
 
@@ -1075,14 +1086,6 @@
   #define UBL_PROBE_PT_3_X _PX(DELTA_PROBEABLE_RADIUS, 240)
   #define UBL_PROBE_PT_3_Y _PY(DELTA_PROBEABLE_RADIUS, 240)
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/delta/kossel_mini/Configuration.h

@@ -1007,6 +1007,17 @@
   // The height can be set with M420 Z<height>
   //#define ENABLE_LEVELING_FADE_HEIGHT
 
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
   // Set the boundaries for probing (where the probe can reach).
   #define DELTA_PROBEABLE_RADIUS (DELTA_PRINTABLE_RADIUS - 10)
 
@@ -1078,14 +1089,6 @@
   #define UBL_PROBE_PT_3_X _PX(DELTA_PROBEABLE_RADIUS, 240)
   #define UBL_PROBE_PT_3_Y _PY(DELTA_PROBEABLE_RADIUS, 240)
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/delta/kossel_pro/Configuration.h

@@ -1007,6 +1007,17 @@
   // The height can be set with M420 Z<height>
   //#define ENABLE_LEVELING_FADE_HEIGHT
 
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
   // Set the boundaries for probing (where the probe can reach).
   #define DELTA_PROBEABLE_RADIUS (DELTA_PRINTABLE_RADIUS - 10)
 
@@ -1078,14 +1089,6 @@
   #define UBL_PROBE_PT_3_X _PX(DELTA_PROBEABLE_RADIUS, 240)
   #define UBL_PROBE_PT_3_Y _PY(DELTA_PROBEABLE_RADIUS, 240)
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/delta/kossel_xl/Configuration.h

@@ -1016,6 +1016,17 @@
   // The height can be set with M420 Z<height>
   //#define ENABLE_LEVELING_FADE_HEIGHT
 
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
   // Set the boundaries for probing (where the probe can reach).
   #define DELTA_PROBEABLE_RADIUS (DELTA_PRINTABLE_RADIUS - 10)
 
@@ -1087,14 +1098,6 @@
   #define UBL_PROBE_PT_3_X _PX(DELTA_PROBEABLE_RADIUS, 240)
   #define UBL_PROBE_PT_3_Y _PY(DELTA_PROBEABLE_RADIUS, 240)
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration.h

@@ -900,6 +900,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -966,14 +978,6 @@
   #define UBL_PROBE_PT_3_X 348
   #define UBL_PROBE_PT_3_Y 211
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/makibox/Configuration.h

@@ -889,6 +889,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -955,14 +967,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/tvrrug/Round2/Configuration.h

@@ -881,6 +881,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -947,14 +959,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/config/examples/wt150/Configuration.h

@@ -891,6 +891,18 @@
   // at which point movement will be level to the machine's XY plane.
   // The height can be set with M420 Z<height>
   #define ENABLE_LEVELING_FADE_HEIGHT
+
+  /**
+   * Enable the G26 Mesh Validation Pattern tool.
+   */
+  //#define G26_MESH_VALIDATION
+  #if ENABLED(G26_MESH_VALIDATION)
+    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
+    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
+    #define MESH_TEST_HOTEND_TEMP  205.0  // (°C) Default nozzle temperature for the G26 Mesh Validation Tool.
+    #define MESH_TEST_BED_TEMP      60.0  // (°C) Default bed temperature for the G26 Mesh Validation Tool.
+  #endif
+
 #endif
 
 #if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)
@@ -957,14 +969,6 @@
   #define UBL_PROBE_PT_3_X 180
   #define UBL_PROBE_PT_3_Y 20
 
-  #define UBL_G26_MESH_VALIDATION   // Enable G26 mesh validation
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
-    #define MESH_TEST_NOZZLE_SIZE    0.4  // (mm) Diameter of primary nozzle.
-    #define MESH_TEST_LAYER_HEIGHT   0.2  // (mm) Default layer height for the G26 Mesh Validation Tool.
-    #define MESH_TEST_HOTEND_TEMP  205.0  // (c)  Default nozzle temperature for the G26 Mesh Validation Tool.
-    #define MESH_TEST_BED_TEMP      60.0  // (c)  Default bed temperature for the G26 Mesh Validation Tool.
-  #endif
-
   #define UBL_MESH_EDIT_MOVES_Z     // Sophisticated users prefer no movement of nozzle
   #define UBL_SAVE_ACTIVE_ON_M500   // Save the currently active mesh in the current slot on M500
 

Marlin/src/core/macros.h

@@ -95,6 +95,9 @@
 #define STRINGIFY(M) STRINGIFY_(M)
 
 // Macros for bit masks
+#ifndef _BV
+  #define _BV(B) (1UL<<(B))
+#endif
 #define TEST(n,b) (((n)&_BV(b))!=0)
 #define SBI(n,b) (n |= _BV(b))
 #define CBI(n,b) (n &= ~_BV(b))

Marlin/src/core/utility.h

@@ -23,7 +23,7 @@
 #ifndef __UTILITY_H__
 #define __UTILITY_H__
 
-#include "../inc/MarlinConfig.h"
+#include "../inc/MarlinConfigPre.h"
 
 constexpr char axis_codes[XYZE] = { 'X', 'Y', 'Z', 'E' };
 
@@ -33,6 +33,18 @@ void safe_delay(millis_t ms);
   void crc16(uint16_t *crc, const void * const data, uint16_t cnt);
 #endif
 
+#if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(G26_MESH_VALIDATION)
+  /**
+   * These support functions allow the use of large bit arrays of flags that take very
+   * little RAM. Currently they are limited to being 16x16 in size. Changing the declaration
+   * to unsigned long will allow us to go to 32x32 if higher resolution Mesh's are needed
+   * in the future.
+   */
+  FORCE_INLINE void bit_clear(uint16_t bits[16], const uint8_t x, const uint8_t y)  { CBI(bits[y], x); }
+  FORCE_INLINE void bit_set(uint16_t bits[16], const uint8_t x, const uint8_t y)    { SBI(bits[y], x); }
+  FORCE_INLINE bool is_bit_set(uint16_t bits[16], const uint8_t x, const uint8_t y) { return TEST(bits[y], x); }
+#endif
+
 #if ENABLED(ULTRA_LCD)
 
   // Convert uint8_t to string with 123 format

Marlin/src/feature/bedlevel/bedlevel.cpp

@@ -41,6 +41,10 @@
   #endif
 #endif
 
+#if G26_MESH_VALIDATION
+  bool g26_debug_flag; // = false
+#endif
+
 bool leveling_is_valid() {
   return
     #if ENABLED(MESH_BED_LEVELING)

Marlin/src/feature/bedlevel/bedlevel.h

@@ -23,14 +23,17 @@
 #ifndef __BEDLEVEL_H__
 #define __BEDLEVEL_H__
 
-#include "../../inc/MarlinConfig.h"
+#include "../../inc/MarlinConfigPre.h"
 
-#if ENABLED(MESH_BED_LEVELING)
+typedef struct {
-  #include "mbl/mesh_bed_leveling.h"
+  int8_t x_index, y_index;
-#elif ENABLED(AUTO_BED_LEVELING_UBL)
+  float distance; // When populated, the distance from the search location
-  #include "ubl/ubl.h"
+} mesh_index_pair;
-#elif HAS_ABL
+
-  #include "abl/abl.h"
+#if ENABLED(G26_MESH_VALIDATION)
+  extern bool g26_debug_flag;
+#else
+  constexpr bool g26_debug_flag = false;
 #endif
 
 #if ENABLED(PROBE_MANUALLY)
@@ -68,4 +71,23 @@ void reset_bed_level();
   void out_of_range_error(const char* p_edge);
 #endif
 
+#if ENABLED(AUTO_BED_LEVELING_BILINEAR)
+  #define _GET_MESH_X(I) bilinear_start[X_AXIS] + I * bilinear_grid_spacing[X_AXIS]
+  #define _GET_MESH_Y(J) bilinear_start[Y_AXIS] + J * bilinear_grid_spacing[Y_AXIS]
+#elif ENABLED(AUTO_BED_LEVELING_UBL)
+  #define _GET_MESH_X(I) ubl.mesh_index_to_xpos(I)
+  #define _GET_MESH_Y(J) ubl.mesh_index_to_ypos(J)
+#elif ENABLED(MESH_BED_LEVELING)
+  #define _GET_MESH_X(I) mbl.index_to_xpos[I]
+  #define _GET_MESH_Y(J) mbl.index_to_ypos[J]
+#endif
+
+#if ENABLED(MESH_BED_LEVELING)
+  #include "mbl/mesh_bed_leveling.h"
+#elif ENABLED(AUTO_BED_LEVELING_UBL)
+  #include "ubl/ubl.h"
+#elif HAS_ABL
+  #include "abl/abl.h"
+#endif
+
 #endif // __BEDLEVEL_H__

Marlin/src/feature/bedlevel/ubl/ubl.cpp

@@ -34,16 +34,6 @@
 
   #include "math.h"
 
-  /**
-   * These support functions allow the use of large bit arrays of flags that take very
-   * little RAM. Currently they are limited to being 16x16 in size. Changing the declaration
-   * to unsigned long will allow us to go to 32x32 if higher resolution Mesh's are needed
-   * in the future.
-   */
-  void bit_clear(uint16_t bits[16], const uint8_t x, const uint8_t y) { CBI(bits[y], x); }
-  void bit_set(uint16_t bits[16], const uint8_t x, const uint8_t y) { SBI(bits[y], x); }
-  bool is_bit_set(uint16_t bits[16], const uint8_t x, const uint8_t y) { return TEST(bits[y], x); }
-
   uint8_t ubl_cnt = 0;
 
   void unified_bed_leveling::echo_name() { SERIAL_PROTOCOLPGM("Unified Bed Leveling"); }
@@ -74,9 +64,6 @@
   constexpr float unified_bed_leveling::_mesh_index_to_xpos[16],
                   unified_bed_leveling::_mesh_index_to_ypos[16];
 
-  bool unified_bed_leveling::g26_debug_flag = false,
-       unified_bed_leveling::has_control_of_lcd_panel = false;
-
   #if ENABLED(ULTRA_LCD)
     bool unified_bed_leveling::lcd_map_control = false;
   #endif

Marlin/src/feature/bedlevel/ubl/ubl.h

@@ -23,9 +23,10 @@
 #ifndef UNIFIED_BED_LEVELING_H
 #define UNIFIED_BED_LEVELING_H
 
-#include "../../../Marlin.h"
+#include "../bedlevel.h"
 #include "../../../module/planner.h"
 #include "../../../module/motion.h"
+#include "../../../Marlin.h"
 
 #define UBL_VERSION "1.01"
 #define UBL_OK false
@@ -34,17 +35,6 @@
 #define USE_NOZZLE_AS_REFERENCE 0
 #define USE_PROBE_AS_REFERENCE 1
 
-typedef struct {
-  int8_t x_index, y_index;
-  float distance; // When populated, the distance from the search location
-} mesh_index_pair;
-
-// ubl.cpp
-
-void bit_clear(uint16_t bits[16], const uint8_t x, const uint8_t y);
-void bit_set(uint16_t bits[16], const uint8_t x, const uint8_t y);
-bool is_bit_set(uint16_t bits[16], const uint8_t x, const uint8_t y);
-
 // ubl_motion.cpp
 
 void debug_current_and_destination(const char * const title);
@@ -56,7 +46,6 @@ enum MeshPointType { INVALID, REAL, SET_IN_BITMAP };
 // External references
 
 char *ftostr43sign(const float&, char);
-bool ubl_lcd_clicked();
 
 extern uint8_t ubl_cnt;
 
@@ -87,22 +76,6 @@ class unified_bed_leveling {
       static int  g29_grid_size;
     #endif
 
-    #if ENABLED(UBL_G26_MESH_VALIDATION)
-      static float   g26_extrusion_multiplier,
-                     g26_retraction_multiplier,
-                     g26_nozzle,
-                     g26_filament_diameter,
-                     g26_prime_length,
-                     g26_x_pos, g26_y_pos,
-                     g26_ooze_amount,
-                     g26_layer_height;
-      static int16_t g26_bed_temp,
-                     g26_hotend_temp,
-                     g26_repeats;
-      static int8_t  g26_prime_flag;
-      static bool    g26_continue_with_closest, g26_keep_heaters_on;
-    #endif
-
     static float measure_point_with_encoder();
     static float measure_business_card_thickness(float);
     static bool g29_parameter_parsing();
@@ -119,21 +92,6 @@ class unified_bed_leveling {
     static bool smart_fill_one(const uint8_t x, const uint8_t y, const int8_t xdir, const int8_t ydir);
     static void smart_fill_mesh();
 
-    #if ENABLED(UBL_G26_MESH_VALIDATION)
-      static bool exit_from_g26();
-      static bool parse_G26_parameters();
-      static void G26_line_to_destination(const float &feed_rate);
-      static mesh_index_pair find_closest_circle_to_print(const float&, const float&);
-      static bool look_for_lines_to_connect();
-      static bool turn_on_heaters();
-      static bool prime_nozzle();
-      static void retract_filament(const float where[XYZE]);
-      static void recover_filament(const float where[XYZE]);
-      static void print_line_from_here_to_there(const float&, const float&, const float&, const float&, const float&, const float&);
-      static void move_to(const float&, const float&, const float&, const float&);
-      inline static void move_to(const float where[XYZE], const float &de) { move_to(where[X_AXIS], where[Y_AXIS], where[Z_AXIS], de); }
-    #endif
-
   public:
 
     static void echo_name();
@@ -151,10 +109,6 @@ class unified_bed_leveling {
     static void G29() _O0;                          // O0 for no optimization
     static void smart_fill_wlsf(const float &) _O2; // O2 gives smaller code than Os on A2560
 
-    #if ENABLED(UBL_G26_MESH_VALIDATION)
-      static void G26();
-    #endif
-
     static int8_t storage_slot;
 
     static float z_values[GRID_MAX_POINTS_X][GRID_MAX_POINTS_Y];
@@ -183,8 +137,6 @@ class unified_bed_leveling {
                               MESH_MIN_Y + 14 * (MESH_Y_DIST), MESH_MIN_Y + 15 * (MESH_Y_DIST)
                             };
 
-    static bool g26_debug_flag, has_control_of_lcd_panel;
-
     #if ENABLED(ULTRA_LCD)
       static bool lcd_map_control;
     #endif

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

@@ -677,8 +677,7 @@
       lcd_reset_alert_level();
       LCD_MESSAGEPGM("");
       lcd_quick_feedback();
-
+      lcd_external_control = false;
-      has_control_of_lcd_panel = false;
     #endif
 
     return;
@@ -738,7 +737,10 @@
     void unified_bed_leveling::probe_entire_mesh(const float &rx, const float &ry, const bool do_ubl_mesh_map, const bool stow_probe, bool close_or_far) {
       mesh_index_pair location;
 
-      has_control_of_lcd_panel = true;
+      #if ENABLED(NEWPANEL)
+        lcd_external_control = true;
+      #endif
+
       save_ubl_active_state_and_disable();   // we don't do bed level correction because we want the raw data when we probe
       DEPLOY_PROBE();
 
@@ -748,12 +750,12 @@
         if (do_ubl_mesh_map) display_map(g29_map_type);
 
         #if ENABLED(NEWPANEL)
-          if (ubl_lcd_clicked()) {
+          if (is_lcd_clicked()) {
             SERIAL_PROTOCOLLNPGM("\nMesh only partially populated.\n");
             lcd_quick_feedback();
             STOW_PROBE();
-            while (ubl_lcd_clicked()) idle();
+            while (is_lcd_clicked()) idle();
-            has_control_of_lcd_panel = false;
+            lcd_external_control = false;
             restore_ubl_active_state_and_leave();
             safe_delay(50);  // Debounce the Encoder wheel
             return;
@@ -894,11 +896,11 @@
 
     float unified_bed_leveling::measure_point_with_encoder() {
 
-      while (ubl_lcd_clicked()) delay(50);  // wait for user to release encoder wheel
+      while (is_lcd_clicked()) delay(50);  // wait for user to release encoder wheel
       delay(50);  // debounce
 
       KEEPALIVE_STATE(PAUSED_FOR_USER);
-      while (!ubl_lcd_clicked()) {     // we need the loop to move the nozzle based on the encoder wheel here!
+      while (!is_lcd_clicked()) {     // we need the loop to move the nozzle based on the encoder wheel here!
         idle();
         if (encoder_diff) {
           do_blocking_move_to_z(current_position[Z_AXIS] + 0.01 * float(encoder_diff));
@@ -912,7 +914,7 @@
     static void echo_and_take_a_measurement() { SERIAL_PROTOCOLLNPGM(" and take a measurement."); }
 
     float unified_bed_leveling::measure_business_card_thickness(const float in_height) {
-      has_control_of_lcd_panel = true;
+      lcd_external_control = true;
       save_ubl_active_state_and_disable();   // Disable bed level correction for probing
 
       do_blocking_move_to(0.5 * (MESH_MAX_X - (MESH_MIN_X)), 0.5 * (MESH_MAX_Y - (MESH_MIN_Y)), in_height);
@@ -944,7 +946,7 @@
         SERIAL_PROTOCOLLNPGM("mm thick.");
       }
 
-      has_control_of_lcd_panel = false;
+      lcd_external_control = false;
 
       restore_ubl_active_state_and_leave();
 
@@ -953,7 +955,7 @@
 
     void unified_bed_leveling::manually_probe_remaining_mesh(const float &rx, const float &ry, const float &z_clearance, const float &thick, const bool do_ubl_mesh_map) {
 
-      has_control_of_lcd_panel = true;
+      lcd_external_control = true;
 
       save_ubl_active_state_and_disable();   // we don't do bed level correction because we want the raw data when we probe
 
@@ -978,7 +980,7 @@
         do_blocking_move_to_z(z_clearance);
 
         KEEPALIVE_STATE(PAUSED_FOR_USER);
-        has_control_of_lcd_panel = true;
+        lcd_external_control = true;
 
         if (do_ubl_mesh_map) display_map(g29_map_type);  // show user where we're probing
 
@@ -987,9 +989,9 @@
         const float z_step = 0.01;                                        // existing behavior: 0.01mm per click, occasionally step
         //const float z_step = 1.0 / planner.axis_steps_per_mm[Z_AXIS];   // approx one step each click
 
-        while (ubl_lcd_clicked()) delay(50);             // wait for user to release encoder wheel
+        while (is_lcd_clicked()) delay(50);             // wait for user to release encoder wheel
         delay(50);                                       // debounce
-        while (!ubl_lcd_clicked()) {                     // we need the loop to move the nozzle based on the encoder wheel here!
+        while (!is_lcd_clicked()) {                     // we need the loop to move the nozzle based on the encoder wheel here!
           idle();
           if (encoder_diff) {
             do_blocking_move_to_z(current_position[Z_AXIS] + float(encoder_diff) * z_step);
@@ -997,11 +999,11 @@
           }
         }
 
-        // this sequence to detect an ubl_lcd_clicked() debounce it and leave if it is
+        // this sequence to detect an is_lcd_clicked() debounce it and leave if it is
         // a Press and Hold is repeated in a lot of places (including G26_Mesh_Validation.cpp).   This
         // should be redone and compressed.
         const millis_t nxt = millis() + 1500L;
-        while (ubl_lcd_clicked()) {     // debounce and watch for abort
+        while (is_lcd_clicked()) {     // debounce and watch for abort
           idle();
           if (ELAPSED(millis(), nxt)) {
             SERIAL_PROTOCOLLNPGM("\nMesh only partially populated.");
@@ -1009,8 +1011,8 @@
 
             #if ENABLED(NEWPANEL)
               lcd_quick_feedback();
-              while (ubl_lcd_clicked()) idle();
+              while (is_lcd_clicked()) idle();
-              has_control_of_lcd_panel = false;
+              lcd_external_control = false;
             #endif
 
             KEEPALIVE_STATE(IN_HANDLER);
@@ -1509,7 +1511,7 @@
         new_z = FLOOR(new_z * 1000.0) * 0.001; // Chop off digits after the 1000ths place
 
         KEEPALIVE_STATE(PAUSED_FOR_USER);
-        has_control_of_lcd_panel = true;
+        lcd_external_control = true;
 
         if (do_ubl_mesh_map) display_map(g29_map_type);  // show the user which point is being adjusted
 
@@ -1523,27 +1525,27 @@
             do_blocking_move_to_z(h_offset + new_z); // Move the nozzle as the point is edited
           #endif
           idle();
-        } while (!ubl_lcd_clicked());
+        } while (!is_lcd_clicked());
 
         if (!lcd_map_control) lcd_return_to_status();
 
         // The technique used here generates a race condition for the encoder click.
         // It could get detected in lcd_mesh_edit (actually _lcd_mesh_fine_tune) or here.
         // Let's work on specifying a proper API for the LCD ASAP, OK?
-        has_control_of_lcd_panel = true;
+        lcd_external_control = true;
 
-        // this sequence to detect an ubl_lcd_clicked() debounce it and leave if it is
+        // this sequence to detect an is_lcd_clicked() debounce it and leave if it is
         // a Press and Hold is repeated in a lot of places (including G26_Mesh_Validation.cpp).   This
         // should be redone and compressed.
         const millis_t nxt = millis() + 1500UL;
-        while (ubl_lcd_clicked()) { // debounce and watch for abort
+        while (is_lcd_clicked()) { // debounce and watch for abort
           idle();
           if (ELAPSED(millis(), nxt)) {
             lcd_return_to_status();
             do_blocking_move_to_z(Z_CLEARANCE_BETWEEN_PROBES);
             LCD_MESSAGEPGM(MSG_EDITING_STOPPED);
 
-            while (ubl_lcd_clicked()) idle();
+            while (is_lcd_clicked()) idle();
 
             goto FINE_TUNE_EXIT;
           }
@@ -1559,7 +1561,7 @@
 
       FINE_TUNE_EXIT:
 
-      has_control_of_lcd_panel = false;
+      lcd_external_control = false;
       KEEPALIVE_STATE(IN_HANDLER);
 
       if (do_ubl_mesh_map) display_map(g29_map_type);

Marlin/src/feature/bedlevel/ubl/ubl_motion.cpp

@@ -23,9 +23,7 @@
 
 #if ENABLED(AUTO_BED_LEVELING_UBL)
 
-  #include "ubl.h"
+  #include "../bedlevel.h"
-
-  #include "../../../Marlin.h"
   #include "../../../module/planner.h"
   #include "../../../module/stepper.h"
   #include "../../../module/motion.h"
@@ -34,6 +32,7 @@
     #include "../../../module/delta.h"
   #endif
 
+  #include "../../../Marlin.h"
   #include <math.h>
 
   extern float destination[XYZE];
@@ -55,7 +54,7 @@
 
     // if the title message starts with a '!' it is so important, we are going to
     // ignore the status of the g26_debug_flag
-    if (*title != '!' && !ubl.g26_debug_flag) return;
+    if (*title != '!' && !g26_debug_flag) return;
 
     const float de = destination[E_AXIS] - current_position[E_AXIS];
 

Marlin/src/gcode/bedlevel/G26.cpp

@@ -24,20 +24,22 @@
  * Marlin Firmware -- G26 - Mesh Validation Tool
  */
 
-#include "../../../inc/MarlinConfig.h"
+#include "../../inc/MarlinConfig.h"
 
-#if ENABLED(UBL_G26_MESH_VALIDATION)
+#if ENABLED(G26_MESH_VALIDATION)
 
-#include "ubl.h"
+#define G26_OK false
+#define G26_ERR true
 
-#include "../../../Marlin.h"
+#include "../../gcode/gcode.h"
-#include "../../../module/planner.h"
+#include "../../feature/bedlevel/bedlevel.h"
-#include "../../../module/stepper.h"
+
-#include "../../../module/motion.h"
+#include "../../Marlin.h"
-#include "../../../module/temperature.h"
+#include "../../module/planner.h"
-#include "../../../lcd/ultralcd.h"
+#include "../../module/stepper.h"
-#include "../../../gcode/parser.h"
+#include "../../module/motion.h"
-#include "../../bedlevel/bedlevel.h"
+#include "../../module/temperature.h"
+#include "../../lcd/ultralcd.h"
 
 #define EXTRUSION_MULTIPLIER 1.0
 #define RETRACTION_MULTIPLIER 1.0
@@ -130,11 +132,6 @@
   extern char lcd_status_message[];
 #endif
 
-#if ENABLED(NEWPANEL)
-  void lcd_setstatusPGM(const char* const message, const int8_t level);
-  void chirp_at_user();
-#endif
-
 // Private functions
 
 static uint16_t circle_flags[16], horizontal_mesh_line_flags[16], vertical_mesh_line_flags[16];
@@ -144,41 +141,23 @@ float g26_e_axis_feedrate = 0.025,
 static bool g26_retracted = false; // Track the retracted state of the nozzle so mismatched
                                    // retracts/recovers won't result in a bad state.
 
-float valid_trig_angle(float);
+float g26_extrusion_multiplier,
+      g26_retraction_multiplier,
+      g26_layer_height,
+      g26_prime_length;
 
-float unified_bed_leveling::g26_extrusion_multiplier,
+int16_t g26_bed_temp,
-      unified_bed_leveling::g26_retraction_multiplier,
+        g26_hotend_temp;
-      unified_bed_leveling::g26_nozzle,
-      unified_bed_leveling::g26_filament_diameter,
-      unified_bed_leveling::g26_layer_height,
-      unified_bed_leveling::g26_prime_length,
-      unified_bed_leveling::g26_x_pos,
-      unified_bed_leveling::g26_y_pos,
-      unified_bed_leveling::g26_ooze_amount;
 
-int16_t unified_bed_leveling::g26_bed_temp,
+int8_t g26_prime_flag;
-        unified_bed_leveling::g26_hotend_temp;
-
-int8_t unified_bed_leveling::g26_prime_flag;
-
-bool unified_bed_leveling::g26_continue_with_closest,
-     unified_bed_leveling::g26_keep_heaters_on;
-
-int16_t unified_bed_leveling::g26_repeats;
-
-void unified_bed_leveling::G26_line_to_destination(const float &feed_rate) {
-  const float save_feedrate = feedrate_mm_s;
-  feedrate_mm_s = feed_rate;      // use specified feed rate
-  prepare_move_to_destination();  // will ultimately call ubl.line_to_destination_cartesian or ubl.prepare_linear_move_to for UBL_DELTA
-  feedrate_mm_s = save_feedrate;  // restore global feed rate
-}
 
 #if ENABLED(NEWPANEL)
+
   /**
-   * Detect ubl_lcd_clicked, debounce it, and return true for cancel
+   * Detect is_lcd_clicked, debounce it, and return true for cancel
    */
   bool user_canceled() {
-    if (!ubl_lcd_clicked()) return false;
+    if (!is_lcd_clicked()) return false;
     safe_delay(10);                       // Wait for click to settle
 
     #if ENABLED(ULTRA_LCD)
@@ -186,25 +165,392 @@ void unified_bed_leveling::G26_line_to_destination(const float &feed_rate) {
       lcd_quick_feedback();
     #endif
 
-    while (!ubl_lcd_clicked()) idle();    // Wait for button release
+    while (!is_lcd_clicked()) idle();    // Wait for button release
 
     // If the button is suddenly pressed again,
     // ask the user to resolve the issue
     lcd_setstatusPGM(PSTR("Release button"), 99); // will never appear...
-    while (ubl_lcd_clicked()) idle();             // unless this loop happens
+    while (is_lcd_clicked()) idle();             // unless this loop happens
     lcd_reset_status();
 
     return true;
   }
+
+  bool exit_from_g26() {
+    lcd_setstatusPGM(PSTR("Leaving G26"), -1);
+    while (is_lcd_clicked()) idle();
+    return G26_ERR;
+  }
+
 #endif
 
+mesh_index_pair find_closest_circle_to_print(const float &X, const float &Y) {
+  float closest = 99999.99;
+  mesh_index_pair return_val;
+
+  return_val.x_index = return_val.y_index = -1;
+
+  for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
+    for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
+      if (!is_bit_set(circle_flags, i, j)) {
+        const float mx = _GET_MESH_X(i),  // We found a circle that needs to be printed
+                    my = _GET_MESH_Y(j);
+
+        // Get the distance to this intersection
+        float f = HYPOT(X - mx, Y - my);
+
+        // It is possible that we are being called with the values
+        // to let us find the closest circle to the start position.
+        // But if this is not the case, add a small weighting to the
+        // distance calculation to help it choose a better place to continue.
+        f += HYPOT(g26_x_pos - mx, g26_y_pos - my) / 15.0;
+
+        // Add in the specified amount of Random Noise to our search
+        if (random_deviation > 1.0)
+          f += random(0.0, random_deviation);
+
+        if (f < closest) {
+          closest = f;              // We found a closer location that is still
+          return_val.x_index = i;   // un-printed  --- save the data for it
+          return_val.y_index = j;
+          return_val.distance = closest;
+        }
+      }
+    }
+  }
+  bit_set(circle_flags, return_val.x_index, return_val.y_index);   // Mark this location as done.
+  return return_val;
+}
+
+void G26_line_to_destination(const float &feed_rate) {
+  const float save_feedrate = feedrate_mm_s;
+  feedrate_mm_s = feed_rate;      // use specified feed rate
+  prepare_move_to_destination();  // will ultimately call ubl.line_to_destination_cartesian or ubl.prepare_linear_move_to for UBL_DELTA
+  feedrate_mm_s = save_feedrate;  // restore global feed rate
+}
+
+void move_to(const float &rx, const float &ry, const float &z, const float &e_delta) {
+  float feed_value;
+  static float last_z = -999.99;
+
+  bool has_xy_component = (rx != current_position[X_AXIS] || ry != current_position[Y_AXIS]); // Check if X or Y is involved in the movement.
+
+  if (z != last_z) {
+    last_z = z;
+    feed_value = planner.max_feedrate_mm_s[Z_AXIS]/(3.0);  // Base the feed rate off of the configured Z_AXIS feed rate
+
+    destination[X_AXIS] = current_position[X_AXIS];
+    destination[Y_AXIS] = current_position[Y_AXIS];
+    destination[Z_AXIS] = z;                          // We know the last_z==z or we wouldn't be in this block of code.
+    destination[E_AXIS] = current_position[E_AXIS];
+
+    G26_line_to_destination(feed_value);
+
+    stepper.synchronize();
+    set_destination_from_current();
+  }
+
+  // Check if X or Y is involved in the movement.
+  // Yes: a 'normal' movement. No: a retract() or recover()
+  feed_value = has_xy_component ? PLANNER_XY_FEEDRATE() / 10.0 : planner.max_feedrate_mm_s[E_AXIS] / 1.5;
+
+  if (g26_debug_flag) SERIAL_ECHOLNPAIR("in move_to() feed_value for XY:", feed_value);
+
+  destination[X_AXIS] = rx;
+  destination[Y_AXIS] = ry;
+  destination[E_AXIS] += e_delta;
+
+  G26_line_to_destination(feed_value);
+
+  stepper.synchronize();
+  set_destination_from_current();
+}
+
+FORCE_INLINE void move_to(const float where[XYZE], const float &de) {
+  move_to(where[X_AXIS], where[Y_AXIS], where[Z_AXIS], de);
+}
+
+void retract_filament(const float where[XYZE]) {
+  if (!g26_retracted) { // Only retract if we are not already retracted!
+    g26_retracted = true;
+    move_to(where, -1.0 * g26_retraction_multiplier);
+  }
+}
+
+void recover_filament(const float where[XYZE]) {
+  if (g26_retracted) { // Only un-retract if we are retracted.
+    move_to(where, 1.2 * g26_retraction_multiplier);
+    g26_retracted = false;
+  }
+}
+
+/**
+ * print_line_from_here_to_there() takes two cartesian coordinates and draws a line from one
+ * to the other. But there are really three sets of coordinates involved. The first coordinate
+ * is the present location of the nozzle. We don't necessarily want to print from this location.
+ * We first need to move the nozzle to the start of line segment where we want to print. Once
+ * there, we can use the two coordinates supplied to draw the line.
+ *
+ * Note:  Although we assume the first set of coordinates is the start of the line and the second
+ * set of coordinates is the end of the line, it does not always work out that way. This function
+ * optimizes the movement to minimize the travel distance before it can start printing. This saves
+ * a lot of time and eliminates a lot of nonsensical movement of the nozzle. However, it does
+ * cause a lot of very little short retracement of th nozzle when it draws the very first line
+ * segment of a 'circle'. The time this requires is very short and is easily saved by the other
+ * cases where the optimization comes into play.
+ */
+void print_line_from_here_to_there(const float &sx, const float &sy, const float &sz, const float &ex, const float &ey, const float &ez) {
+  const float dx_s = current_position[X_AXIS] - sx,   // find our distance from the start of the actual line segment
+              dy_s = current_position[Y_AXIS] - sy,
+              dist_start = HYPOT2(dx_s, dy_s),        // We don't need to do a sqrt(), we can compare the distance^2
+                                                      // to save computation time
+              dx_e = current_position[X_AXIS] - ex,   // find our distance from the end of the actual line segment
+              dy_e = current_position[Y_AXIS] - ey,
+              dist_end = HYPOT2(dx_e, dy_e),
+
+              line_length = HYPOT(ex - sx, ey - sy);
+
+  // If the end point of the line is closer to the nozzle, flip the direction,
+  // moving from the end to the start. On very small lines the optimization isn't worth it.
+  if (dist_end < dist_start && (SIZE_OF_INTERSECTION_CIRCLES) < FABS(line_length)) {
+    return print_line_from_here_to_there(ex, ey, ez, sx, sy, sz);
+  }
+
+  // Decide whether to retract & bump
+
+  if (dist_start > 2.0) {
+    retract_filament(destination);
+    //todo:  parameterize the bump height with a define
+    move_to(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS] + 0.500, 0.0);  // Z bump to minimize scraping
+    move_to(sx, sy, sz + 0.500, 0.0); // Get to the starting point with no extrusion while bumped
+  }
+
+  move_to(sx, sy, sz, 0.0); // Get to the starting point with no extrusion / un-Z bump
+
+  const float e_pos_delta = line_length * g26_e_axis_feedrate * g26_extrusion_multiplier;
+
+  recover_filament(destination);
+  move_to(ex, ey, ez, e_pos_delta);  // Get to the ending point with an appropriate amount of extrusion
+}
+
+inline bool look_for_lines_to_connect() {
+  float sx, sy, ex, ey;
+
+  for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
+    for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
+
+      #if ENABLED(NEWPANEL)
+        if (user_canceled()) return true;     // Check if the user wants to stop the Mesh Validation
+      #endif
+
+      if (i < GRID_MAX_POINTS_X) { // We can't connect to anything to the right than GRID_MAX_POINTS_X.
+                                   // This is already a half circle because we are at the edge of the bed.
+
+        if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i + 1, j)) { // check if we can do a line to the left
+          if (!is_bit_set(horizontal_mesh_line_flags, i, j)) {
+
+            //
+            // We found two circles that need a horizontal line to connect them
+            // Print it!
+            //
+            sx = _GET_MESH_X(  i  ) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // right edge
+            ex = _GET_MESH_X(i + 1) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // left edge
+
+            sx = constrain(sx, X_MIN_POS + 1, X_MAX_POS - 1);
+            sy = ey = constrain(_GET_MESH_Y(j), Y_MIN_POS + 1, Y_MAX_POS - 1);
+            ex = constrain(ex, X_MIN_POS + 1, X_MAX_POS - 1);
+
+            if (position_is_reachable(sx, sy) && position_is_reachable(ex, ey)) {
+
+              if (g26_debug_flag) {
+                SERIAL_ECHOPAIR(" Connecting with horizontal line (sx=", sx);
+                SERIAL_ECHOPAIR(", sy=", sy);
+                SERIAL_ECHOPAIR(") -> (ex=", ex);
+                SERIAL_ECHOPAIR(", ey=", ey);
+                SERIAL_CHAR(')');
+                SERIAL_EOL();
+                //debug_current_and_destination(PSTR("Connecting horizontal line."));
+              }
+
+              print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
+            }
+            bit_set(horizontal_mesh_line_flags, i, j);   // Mark it as done so we don't do it again, even if we skipped it
+          }
+        }
+
+        if (j < GRID_MAX_POINTS_Y) { // We can't connect to anything further back than GRID_MAX_POINTS_Y.
+                                         // This is already a half circle because we are at the edge  of the bed.
+
+          if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i, j + 1)) { // check if we can do a line straight down
+            if (!is_bit_set( vertical_mesh_line_flags, i, j)) {
+              //
+              // We found two circles that need a vertical line to connect them
+              // Print it!
+              //
+              sy = _GET_MESH_Y(  j  ) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // top edge
+              ey = _GET_MESH_Y(j + 1) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // bottom edge
+
+              sx = ex = constrain(_GET_MESH_X(i), X_MIN_POS + 1, X_MAX_POS - 1);
+              sy = constrain(sy, Y_MIN_POS + 1, Y_MAX_POS - 1);
+              ey = constrain(ey, Y_MIN_POS + 1, Y_MAX_POS - 1);
+
+              if (position_is_reachable(sx, sy) && position_is_reachable(ex, ey)) {
+
+                if (g26_debug_flag) {
+                  SERIAL_ECHOPAIR(" Connecting with vertical line (sx=", sx);
+                  SERIAL_ECHOPAIR(", sy=", sy);
+                  SERIAL_ECHOPAIR(") -> (ex=", ex);
+                  SERIAL_ECHOPAIR(", ey=", ey);
+                  SERIAL_CHAR(')');
+                  SERIAL_EOL();
+                  debug_current_and_destination(PSTR("Connecting vertical line."));
+                }
+                print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
+              }
+              bit_set(vertical_mesh_line_flags, i, j);   // Mark it as done so we don't do it again, even if skipped
+            }
+          }
+        }
+      }
+    }
+  }
+  return false;
+}
+
+/**
+ * Turn on the bed and nozzle heat and
+ * wait for them to get up to temperature.
+ */
+inline bool turn_on_heaters() {
+  millis_t next = millis() + 5000UL;
+  #if HAS_TEMP_BED
+    #if ENABLED(ULTRA_LCD)
+      if (g26_bed_temp > 25) {
+        lcd_setstatusPGM(PSTR("G26 Heating Bed."), 99);
+        lcd_quick_feedback();
+        lcd_external_control = true;
+    #endif
+        thermalManager.setTargetBed(g26_bed_temp);
+        while (abs(thermalManager.degBed() - g26_bed_temp) > 3) {
+
+          #if ENABLED(NEWPANEL)
+            if (is_lcd_clicked()) return exit_from_g26();
+          #endif
+
+          if (ELAPSED(millis(), next)) {
+            next = millis() + 5000UL;
+            thermalManager.print_heaterstates();
+            SERIAL_EOL();
+          }
+          idle();
+        }
+    #if ENABLED(ULTRA_LCD)
+      }
+      lcd_setstatusPGM(PSTR("G26 Heating Nozzle."), 99);
+      lcd_quick_feedback();
+    #endif
+  #endif
+
+  // Start heating the nozzle and wait for it to reach temperature.
+  thermalManager.setTargetHotend(g26_hotend_temp, 0);
+  while (abs(thermalManager.degHotend(0) - g26_hotend_temp) > 3) {
+
+    #if ENABLED(NEWPANEL)
+      if (is_lcd_clicked()) return exit_from_g26();
+    #endif
+
+    if (ELAPSED(millis(), next)) {
+      next = millis() + 5000UL;
+      thermalManager.print_heaterstates();
+      SERIAL_EOL();
+    }
+    idle();
+  }
+
+  #if ENABLED(ULTRA_LCD)
+    lcd_reset_status();
+    lcd_quick_feedback();
+  #endif
+
+  return G26_OK;
+}
+
+/**
+ * Prime the nozzle if needed. Return true on error.
+ */
+bool prime_nozzle() {
+
+  #if ENABLED(NEWPANEL)
+    float Total_Prime = 0.0;
+
+    if (g26_prime_flag == -1) {  // The user wants to control how much filament gets purged
+
+      lcd_external_control = true;
+      lcd_setstatusPGM(PSTR("User-Controlled Prime"), 99);
+      lcd_chirp();
+
+      set_destination_from_current();
+
+      recover_filament(destination); // Make sure G26 doesn't think the filament is retracted().
+
+      while (!is_lcd_clicked()) {
+        lcd_chirp();
+        destination[E_AXIS] += 0.25;
+        #ifdef PREVENT_LENGTHY_EXTRUDE
+          Total_Prime += 0.25;
+          if (Total_Prime >= EXTRUDE_MAXLENGTH) return G26_ERR;
+        #endif
+        G26_line_to_destination(planner.max_feedrate_mm_s[E_AXIS] / 15.0);
+
+        stepper.synchronize();    // Without this synchronize, the purge is more consistent,
+                                  // but because the planner has a buffer, we won't be able
+                                  // to stop as quickly. So we put up with the less smooth
+                                  // action to give the user a more responsive 'Stop'.
+        set_destination_from_current();
+        idle();
+      }
+
+      while (is_lcd_clicked()) idle();           // Debounce Encoder Wheel
+
+      #if ENABLED(ULTRA_LCD)
+        strcpy_P(lcd_status_message, PSTR("Done Priming")); // We can't do lcd_setstatusPGM() without having it continue;
+                                                            // So... We cheat to get a message up.
+        lcd_setstatusPGM(PSTR("Done Priming"), 99);
+        lcd_quick_feedback();
+        lcd_external_control = false;
+      #endif
+    }
+    else
+  #endif
+  {
+    #if ENABLED(ULTRA_LCD)
+      lcd_setstatusPGM(PSTR("Fixed Length Prime."), 99);
+      lcd_quick_feedback();
+    #endif
+    set_destination_from_current();
+    destination[E_AXIS] += g26_prime_length;
+    G26_line_to_destination(planner.max_feedrate_mm_s[E_AXIS] / 15.0);
+    stepper.synchronize();
+    set_destination_from_current();
+    retract_filament(destination);
+  }
+
+  return G26_OK;
+}
+
+float valid_trig_angle(float d) {
+  while (d > 360.0) d -= 360.0;
+  while (d < 0.0) d += 360.0;
+  return d;
+}
+
 /**
  * G26: Mesh Validation Pattern generation.
  *
- * Used to interactively edit UBL's Mesh by placing the
+ * Used to interactively edit the mesh by placing the
  * nozzle in a problem area and doing a G29 P4 R command.
  */
-void unified_bed_leveling::G26() {
+void GcodeSuite::G26() {
   SERIAL_ECHOLNPGM("G26 command started. Waiting for heater(s).");
   float tmp, start_angle, end_angle;
   int   i, xi, yi;
@@ -212,7 +558,134 @@ void unified_bed_leveling::G26() {
 
   // Don't allow Mesh Validation without homing first,
   // or if the parameter parsing did not go OK, abort
-  if (axis_unhomed_error() || parse_G26_parameters()) return;
+  if (axis_unhomed_error()) return;
+
+  g26_extrusion_multiplier    = EXTRUSION_MULTIPLIER;
+  g26_retraction_multiplier   = RETRACTION_MULTIPLIER;
+  g26_layer_height            = MESH_TEST_LAYER_HEIGHT;
+  g26_prime_length            = PRIME_LENGTH;
+  g26_bed_temp                = MESH_TEST_BED_TEMP;
+  g26_hotend_temp             = MESH_TEST_HOTEND_TEMP;
+  g26_prime_flag              = 0;
+
+  float g26_nozzle            = MESH_TEST_NOZZLE_SIZE,
+        g26_filament_diameter = DEFAULT_NOMINAL_FILAMENT_DIA,
+        g26_ooze_amount       = parser.linearval('O', OOZE_AMOUNT);
+
+  bool g26_continue_with_closest = parser.boolval('C'),
+       g26_keep_heaters_on       = parser.boolval('K');
+
+  if (parser.seenval('B')) {
+    g26_bed_temp = parser.value_celsius();
+    if (!WITHIN(g26_bed_temp, 15, 140)) {
+      SERIAL_PROTOCOLLNPGM("?Specified bed temperature not plausible.");
+      return G26_ERR;
+    }
+  }
+
+  if (parser.seenval('L')) {
+    g26_layer_height = parser.value_linear_units();
+    if (!WITHIN(g26_layer_height, 0.0, 2.0)) {
+      SERIAL_PROTOCOLLNPGM("?Specified layer height not plausible.");
+      return G26_ERR;
+    }
+  }
+
+  if (parser.seen('Q')) {
+    if (parser.has_value()) {
+      g26_retraction_multiplier = parser.value_float();
+      if (!WITHIN(g26_retraction_multiplier, 0.05, 15.0)) {
+        SERIAL_PROTOCOLLNPGM("?Specified Retraction Multiplier not plausible.");
+        return G26_ERR;
+      }
+    }
+    else {
+      SERIAL_PROTOCOLLNPGM("?Retraction Multiplier must be specified.");
+      return G26_ERR;
+    }
+  }
+
+  if (parser.seenval('S')) {
+    g26_nozzle = parser.value_float();
+    if (!WITHIN(g26_nozzle, 0.1, 1.0)) {
+      SERIAL_PROTOCOLLNPGM("?Specified nozzle size not plausible.");
+      return G26_ERR;
+    }
+  }
+
+  if (parser.seen('P')) {
+    if (!parser.has_value()) {
+      #if ENABLED(NEWPANEL)
+        g26_prime_flag = -1;
+      #else
+        SERIAL_PROTOCOLLNPGM("?Prime length must be specified when not using an LCD.");
+        return G26_ERR;
+      #endif
+    }
+    else {
+      g26_prime_flag++;
+      g26_prime_length = parser.value_linear_units();
+      if (!WITHIN(g26_prime_length, 0.0, 25.0)) {
+        SERIAL_PROTOCOLLNPGM("?Specified prime length not plausible.");
+        return G26_ERR;
+      }
+    }
+  }
+
+  if (parser.seenval('F')) {
+    g26_filament_diameter = parser.value_linear_units();
+    if (!WITHIN(g26_filament_diameter, 1.0, 4.0)) {
+      SERIAL_PROTOCOLLNPGM("?Specified filament size not plausible.");
+      return G26_ERR;
+    }
+  }
+  g26_extrusion_multiplier *= sq(1.75) / sq(g26_filament_diameter); // If we aren't using 1.75mm filament, we need to
+                                                                    // scale up or down the length needed to get the
+                                                                    // same volume of filament
+
+  g26_extrusion_multiplier *= g26_filament_diameter * sq(g26_nozzle) / sq(0.3); // Scale up by nozzle size
+
+  if (parser.seenval('H')) {
+    g26_hotend_temp = parser.value_celsius();
+    if (!WITHIN(g26_hotend_temp, 165, 280)) {
+      SERIAL_PROTOCOLLNPGM("?Specified nozzle temperature not plausible.");
+      return G26_ERR;
+    }
+  }
+
+  if (parser.seen('U')) {
+    randomSeed(millis());
+    // This setting will persist for the next G26
+    random_deviation = parser.has_value() ? parser.value_float() : 50.0;
+  }
+
+  int16_t g26_repeats;
+  #if ENABLED(NEWPANEL)
+    g26_repeats = parser.intval('R', GRID_MAX_POINTS + 1);
+  #else
+    if (!parser.seen('R')) {
+      SERIAL_PROTOCOLLNPGM("?(R)epeat must be specified when not using an LCD.");
+      return G26_ERR;
+    }
+    else
+      g26_repeats = parser.has_value() ? parser.value_int() : GRID_MAX_POINTS + 1;
+  #endif
+  if (g26_repeats < 1) {
+    SERIAL_PROTOCOLLNPGM("?(R)epeat value not plausible; must be at least 1.");
+    return G26_ERR;
+  }
+
+  float g26_x_pos = parser.seenval('X') ? RAW_X_POSITION(parser.value_linear_units()) : current_position[X_AXIS],
+        g26_y_pos = parser.seenval('Y') ? RAW_Y_POSITION(parser.value_linear_units()) : current_position[Y_AXIS];
+  if (!position_is_reachable(g26_x_pos, g26_y_pos)) {
+    SERIAL_PROTOCOLLNPGM("?Specified X,Y coordinate out of bounds.");
+    return G26_ERR;
+  }
+
+  /**
+   * Wait until all parameters are verified before altering the state!
+   */
+  set_bed_leveling_enabled(!parser.seen('D'));
 
   if (current_position[Z_AXIS] < Z_CLEARANCE_BETWEEN_PROBES) {
     do_blocking_move_to_z(Z_CLEARANCE_BETWEEN_PROBES);
@@ -220,7 +693,7 @@ void unified_bed_leveling::G26() {
     set_current_from_destination();
   }
 
-  if (turn_on_heaters()) goto LEAVE;
+  if (turn_on_heaters() != G26_OK) goto LEAVE;
 
   current_position[E_AXIS] = 0.0;
   sync_plan_position_e();
@@ -247,7 +720,9 @@ void unified_bed_leveling::G26() {
   move_to(destination, 0.0);
   move_to(destination, g26_ooze_amount);
 
-  has_control_of_lcd_panel = true;
+  #if ENABLED(ULTRA_LCD)
+    lcd_external_control = true;
+  #endif
   //debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
 
   /**
@@ -266,8 +741,8 @@ void unified_bed_leveling::G26() {
       : find_closest_circle_to_print(g26_x_pos, g26_y_pos); // Find the closest Mesh Intersection to where we are now.
 
     if (location.x_index >= 0 && location.y_index >= 0) {
-      const float circle_x = mesh_index_to_xpos(location.x_index),
+      const float circle_x = _GET_MESH_X(location.x_index),
-                  circle_y = mesh_index_to_ypos(location.y_index);
+                  circle_y = _GET_MESH_Y(location.y_index);
 
       // If this mesh location is outside the printable_radius, skip it.
 
@@ -370,7 +845,9 @@ void unified_bed_leveling::G26() {
   move_to(destination, 0); // Move back to the starting position
   //debug_current_and_destination(PSTR("done doing X/Y move."));
 
-  has_control_of_lcd_panel = false;     // Give back control of the LCD Panel!
+  #if ENABLED(ULTRA_LCD)
+    lcd_external_control = false;   // Give back control of the LCD Panel!
+  #endif
 
   if (!g26_keep_heaters_on) {
     #if HAS_TEMP_BED
@@ -380,500 +857,4 @@ void unified_bed_leveling::G26() {
   }
 }
 
-float valid_trig_angle(float d) {
+#endif // G26_MESH_VALIDATION
-  while (d > 360.0) d -= 360.0;
-  while (d < 0.0) d += 360.0;
-  return d;
-}
-
-mesh_index_pair unified_bed_leveling::find_closest_circle_to_print(const float &X, const float &Y) {
-  float closest = 99999.99;
-  mesh_index_pair return_val;
-
-  return_val.x_index = return_val.y_index = -1;
-
-  for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
-    for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
-      if (!is_bit_set(circle_flags, i, j)) {
-        const float mx = mesh_index_to_xpos(i),  // We found a circle that needs to be printed
-                    my = mesh_index_to_ypos(j);
-
-        // Get the distance to this intersection
-        float f = HYPOT(X - mx, Y - my);
-
-        // It is possible that we are being called with the values
-        // to let us find the closest circle to the start position.
-        // But if this is not the case, add a small weighting to the
-        // distance calculation to help it choose a better place to continue.
-        f += HYPOT(g26_x_pos - mx, g26_y_pos - my) / 15.0;
-
-        // Add in the specified amount of Random Noise to our search
-        if (random_deviation > 1.0)
-          f += random(0.0, random_deviation);
-
-        if (f < closest) {
-          closest = f;              // We found a closer location that is still
-          return_val.x_index = i;   // un-printed  --- save the data for it
-          return_val.y_index = j;
-          return_val.distance = closest;
-        }
-      }
-    }
-  }
-  bit_set(circle_flags, return_val.x_index, return_val.y_index);   // Mark this location as done.
-  return return_val;
-}
-
-bool unified_bed_leveling::look_for_lines_to_connect() {
-  float sx, sy, ex, ey;
-
-  for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
-    for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
-
-      #if ENABLED(NEWPANEL)
-        if (user_canceled()) return true;     // Check if the user wants to stop the Mesh Validation
-      #endif
-
-      if (i < GRID_MAX_POINTS_X) { // We can't connect to anything to the right than GRID_MAX_POINTS_X.
-                                   // This is already a half circle because we are at the edge of the bed.
-
-        if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i + 1, j)) { // check if we can do a line to the left
-          if (!is_bit_set(horizontal_mesh_line_flags, i, j)) {
-
-            //
-            // We found two circles that need a horizontal line to connect them
-            // Print it!
-            //
-            sx = mesh_index_to_xpos(  i  ) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // right edge
-            ex = mesh_index_to_xpos(i + 1) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // left edge
-
-            sx = constrain(sx, X_MIN_POS + 1, X_MAX_POS - 1);
-            sy = ey = constrain(mesh_index_to_ypos(j), Y_MIN_POS + 1, Y_MAX_POS - 1);
-            ex = constrain(ex, X_MIN_POS + 1, X_MAX_POS - 1);
-
-            if (position_is_reachable(sx, sy) && position_is_reachable(ex, ey)) {
-
-              if (g26_debug_flag) {
-                SERIAL_ECHOPAIR(" Connecting with horizontal line (sx=", sx);
-                SERIAL_ECHOPAIR(", sy=", sy);
-                SERIAL_ECHOPAIR(") -> (ex=", ex);
-                SERIAL_ECHOPAIR(", ey=", ey);
-                SERIAL_CHAR(')');
-                SERIAL_EOL();
-                //debug_current_and_destination(PSTR("Connecting horizontal line."));
-              }
-
-              print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
-            }
-            bit_set(horizontal_mesh_line_flags, i, j);   // Mark it as done so we don't do it again, even if we skipped it
-          }
-        }
-
-        if (j < GRID_MAX_POINTS_Y) { // We can't connect to anything further back than GRID_MAX_POINTS_Y.
-                                         // This is already a half circle because we are at the edge  of the bed.
-
-          if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i, j + 1)) { // check if we can do a line straight down
-            if (!is_bit_set( vertical_mesh_line_flags, i, j)) {
-              //
-              // We found two circles that need a vertical line to connect them
-              // Print it!
-              //
-              sy = mesh_index_to_ypos(  j  ) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // top edge
-              ey = mesh_index_to_ypos(j + 1) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // bottom edge
-
-              sx = ex = constrain(mesh_index_to_xpos(i), X_MIN_POS + 1, X_MAX_POS - 1);
-              sy = constrain(sy, Y_MIN_POS + 1, Y_MAX_POS - 1);
-              ey = constrain(ey, Y_MIN_POS + 1, Y_MAX_POS - 1);
-
-              if (position_is_reachable(sx, sy) && position_is_reachable(ex, ey)) {
-
-                if (g26_debug_flag) {
-                  SERIAL_ECHOPAIR(" Connecting with vertical line (sx=", sx);
-                  SERIAL_ECHOPAIR(", sy=", sy);
-                  SERIAL_ECHOPAIR(") -> (ex=", ex);
-                  SERIAL_ECHOPAIR(", ey=", ey);
-                  SERIAL_CHAR(')');
-                  SERIAL_EOL();
-                  debug_current_and_destination(PSTR("Connecting vertical line."));
-                }
-                print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
-              }
-              bit_set(vertical_mesh_line_flags, i, j);   // Mark it as done so we don't do it again, even if skipped
-            }
-          }
-        }
-      }
-    }
-  }
-  return false;
-}
-
-void unified_bed_leveling::move_to(const float &rx, const float &ry, const float &z, const float &e_delta) {
-  float feed_value;
-  static float last_z = -999.99;
-
-  bool has_xy_component = (rx != current_position[X_AXIS] || ry != current_position[Y_AXIS]); // Check if X or Y is involved in the movement.
-
-  if (z != last_z) {
-    last_z = z;
-    feed_value = planner.max_feedrate_mm_s[Z_AXIS]/(3.0);  // Base the feed rate off of the configured Z_AXIS feed rate
-
-    destination[X_AXIS] = current_position[X_AXIS];
-    destination[Y_AXIS] = current_position[Y_AXIS];
-    destination[Z_AXIS] = z;                          // We know the last_z==z or we wouldn't be in this block of code.
-    destination[E_AXIS] = current_position[E_AXIS];
-
-    G26_line_to_destination(feed_value);
-
-    stepper.synchronize();
-    set_destination_from_current();
-  }
-
-  // Check if X or Y is involved in the movement.
-  // Yes: a 'normal' movement. No: a retract() or recover()
-  feed_value = has_xy_component ? PLANNER_XY_FEEDRATE() / 10.0 : planner.max_feedrate_mm_s[E_AXIS] / 1.5;
-
-  if (g26_debug_flag) SERIAL_ECHOLNPAIR("in move_to() feed_value for XY:", feed_value);
-
-  destination[X_AXIS] = rx;
-  destination[Y_AXIS] = ry;
-  destination[E_AXIS] += e_delta;
-
-  G26_line_to_destination(feed_value);
-
-  stepper.synchronize();
-  set_destination_from_current();
-
-}
-
-void unified_bed_leveling::retract_filament(const float where[XYZE]) {
-  if (!g26_retracted) { // Only retract if we are not already retracted!
-    g26_retracted = true;
-    move_to(where, -1.0 * g26_retraction_multiplier);
-  }
-}
-
-void unified_bed_leveling::recover_filament(const float where[XYZE]) {
-  if (g26_retracted) { // Only un-retract if we are retracted.
-    move_to(where, 1.2 * g26_retraction_multiplier);
-    g26_retracted = false;
-  }
-}
-
-/**
- * print_line_from_here_to_there() takes two cartesian coordinates and draws a line from one
- * to the other. But there are really three sets of coordinates involved. The first coordinate
- * is the present location of the nozzle. We don't necessarily want to print from this location.
- * We first need to move the nozzle to the start of line segment where we want to print. Once
- * there, we can use the two coordinates supplied to draw the line.
- *
- * Note:  Although we assume the first set of coordinates is the start of the line and the second
- * set of coordinates is the end of the line, it does not always work out that way. This function
- * optimizes the movement to minimize the travel distance before it can start printing. This saves
- * a lot of time and eliminates a lot of nonsensical movement of the nozzle. However, it does
- * cause a lot of very little short retracement of th nozzle when it draws the very first line
- * segment of a 'circle'. The time this requires is very short and is easily saved by the other
- * cases where the optimization comes into play.
- */
-void unified_bed_leveling::print_line_from_here_to_there(const float &sx, const float &sy, const float &sz, const float &ex, const float &ey, const float &ez) {
-  const float dx_s = current_position[X_AXIS] - sx,   // find our distance from the start of the actual line segment
-              dy_s = current_position[Y_AXIS] - sy,
-              dist_start = HYPOT2(dx_s, dy_s),        // We don't need to do a sqrt(), we can compare the distance^2
-                                                      // to save computation time
-              dx_e = current_position[X_AXIS] - ex,   // find our distance from the end of the actual line segment
-              dy_e = current_position[Y_AXIS] - ey,
-              dist_end = HYPOT2(dx_e, dy_e),
-
-              line_length = HYPOT(ex - sx, ey - sy);
-
-  // If the end point of the line is closer to the nozzle, flip the direction,
-  // moving from the end to the start. On very small lines the optimization isn't worth it.
-  if (dist_end < dist_start && (SIZE_OF_INTERSECTION_CIRCLES) < FABS(line_length)) {
-    return print_line_from_here_to_there(ex, ey, ez, sx, sy, sz);
-  }
-
-  // Decide whether to retract & bump
-
-  if (dist_start > 2.0) {
-    retract_filament(destination);
-    //todo:  parameterize the bump height with a define
-    move_to(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS] + 0.500, 0.0);  // Z bump to minimize scraping
-    move_to(sx, sy, sz + 0.500, 0.0); // Get to the starting point with no extrusion while bumped
-  }
-
-  move_to(sx, sy, sz, 0.0); // Get to the starting point with no extrusion / un-Z bump
-
-  const float e_pos_delta = line_length * g26_e_axis_feedrate * g26_extrusion_multiplier;
-
-  recover_filament(destination);
-  move_to(ex, ey, ez, e_pos_delta);  // Get to the ending point with an appropriate amount of extrusion
-}
-
-/**
- * This function used to be inline code in G26. But there are so many
- * parameters it made sense to turn them into static globals and get
- * this code out of sight of the main routine.
- */
-bool unified_bed_leveling::parse_G26_parameters() {
-
-  g26_extrusion_multiplier  = EXTRUSION_MULTIPLIER;
-  g26_retraction_multiplier = RETRACTION_MULTIPLIER;
-  g26_nozzle                = MESH_TEST_NOZZLE_SIZE;
-  g26_filament_diameter     = DEFAULT_NOMINAL_FILAMENT_DIA;
-  g26_layer_height          = MESH_TEST_LAYER_HEIGHT;
-  g26_prime_length          = PRIME_LENGTH;
-  g26_bed_temp              = MESH_TEST_BED_TEMP;
-  g26_hotend_temp           = MESH_TEST_HOTEND_TEMP;
-  g26_prime_flag            = 0;
-
-  g26_ooze_amount           = parser.linearval('O', OOZE_AMOUNT);
-  g26_keep_heaters_on       = parser.boolval('K');
-  g26_continue_with_closest = parser.boolval('C');
-
-  if (parser.seenval('B')) {
-    g26_bed_temp = parser.value_celsius();
-    if (!WITHIN(g26_bed_temp, 15, 140)) {
-      SERIAL_PROTOCOLLNPGM("?Specified bed temperature not plausible.");
-      return UBL_ERR;
-    }
-  }
-
-  if (parser.seenval('L')) {
-    g26_layer_height = parser.value_linear_units();
-    if (!WITHIN(g26_layer_height, 0.0, 2.0)) {
-      SERIAL_PROTOCOLLNPGM("?Specified layer height not plausible.");
-      return UBL_ERR;
-    }
-  }
-
-  if (parser.seen('Q')) {
-    if (parser.has_value()) {
-      g26_retraction_multiplier = parser.value_float();
-      if (!WITHIN(g26_retraction_multiplier, 0.05, 15.0)) {
-        SERIAL_PROTOCOLLNPGM("?Specified Retraction Multiplier not plausible.");
-        return UBL_ERR;
-      }
-    }
-    else {
-      SERIAL_PROTOCOLLNPGM("?Retraction Multiplier must be specified.");
-      return UBL_ERR;
-    }
-  }
-
-  if (parser.seenval('S')) {
-    g26_nozzle = parser.value_float();
-    if (!WITHIN(g26_nozzle, 0.1, 1.0)) {
-      SERIAL_PROTOCOLLNPGM("?Specified nozzle size not plausible.");
-      return UBL_ERR;
-    }
-  }
-
-  if (parser.seen('P')) {
-    if (!parser.has_value()) {
-      #if ENABLED(NEWPANEL)
-        g26_prime_flag = -1;
-      #else
-        SERIAL_PROTOCOLLNPGM("?Prime length must be specified when not using an LCD.");
-        return UBL_ERR;
-      #endif
-    }
-    else {
-      g26_prime_flag++;
-      g26_prime_length = parser.value_linear_units();
-      if (!WITHIN(g26_prime_length, 0.0, 25.0)) {
-        SERIAL_PROTOCOLLNPGM("?Specified prime length not plausible.");
-        return UBL_ERR;
-      }
-    }
-  }
-
-  if (parser.seenval('F')) {
-    g26_filament_diameter = parser.value_linear_units();
-    if (!WITHIN(g26_filament_diameter, 1.0, 4.0)) {
-      SERIAL_PROTOCOLLNPGM("?Specified filament size not plausible.");
-      return UBL_ERR;
-    }
-  }
-  g26_extrusion_multiplier *= sq(1.75) / sq(g26_filament_diameter); // If we aren't using 1.75mm filament, we need to
-                                                                    // scale up or down the length needed to get the
-                                                                    // same volume of filament
-
-  g26_extrusion_multiplier *= g26_filament_diameter * sq(g26_nozzle) / sq(0.3); // Scale up by nozzle size
-
-  if (parser.seenval('H')) {
-    g26_hotend_temp = parser.value_celsius();
-    if (!WITHIN(g26_hotend_temp, 165, 280)) {
-      SERIAL_PROTOCOLLNPGM("?Specified nozzle temperature not plausible.");
-      return UBL_ERR;
-    }
-  }
-
-  if (parser.seen('U')) {
-    randomSeed(millis());
-    // This setting will persist for the next G26
-    random_deviation = parser.has_value() ? parser.value_float() : 50.0;
-  }
-
-  #if ENABLED(NEWPANEL)
-    g26_repeats = parser.intval('R', GRID_MAX_POINTS + 1);
-  #else
-    if (!parser.seen('R')) {
-      SERIAL_PROTOCOLLNPGM("?(R)epeat must be specified when not using an LCD.");
-      return UBL_ERR;
-    }
-    else
-      g26_repeats = parser.has_value() ? parser.value_int() : GRID_MAX_POINTS + 1;
-  #endif
-  if (g26_repeats < 1) {
-    SERIAL_PROTOCOLLNPGM("?(R)epeat value not plausible; must be at least 1.");
-    return UBL_ERR;
-  }
-
-  g26_x_pos = parser.seenval('X') ? RAW_X_POSITION(parser.value_linear_units()) : current_position[X_AXIS];
-  g26_y_pos = parser.seenval('Y') ? RAW_Y_POSITION(parser.value_linear_units()) : current_position[Y_AXIS];
-  if (!position_is_reachable(g26_x_pos, g26_y_pos)) {
-    SERIAL_PROTOCOLLNPGM("?Specified X,Y coordinate out of bounds.");
-    return UBL_ERR;
-  }
-
-  /**
-   * Wait until all parameters are verified before altering the state!
-   */
-  set_bed_leveling_enabled(!parser.seen('D'));
-
-  return UBL_OK;
-}
-
-#if ENABLED(NEWPANEL)
-  bool unified_bed_leveling::exit_from_g26() {
-    lcd_setstatusPGM(PSTR("Leaving G26"), -1);
-    while (ubl_lcd_clicked()) idle();
-    return UBL_ERR;
-  }
-#endif
-
-/**
- * Turn on the bed and nozzle heat and
- * wait for them to get up to temperature.
- */
-bool unified_bed_leveling::turn_on_heaters() {
-  millis_t next = millis() + 5000UL;
-  #if HAS_TEMP_BED
-    #if ENABLED(ULTRA_LCD)
-      if (g26_bed_temp > 25) {
-        lcd_setstatusPGM(PSTR("G26 Heating Bed."), 99);
-        lcd_quick_feedback();
-    #endif
-        has_control_of_lcd_panel = true;
-        thermalManager.setTargetBed(g26_bed_temp);
-        while (abs(thermalManager.degBed() - g26_bed_temp) > 3) {
-
-          #if ENABLED(NEWPANEL)
-            if (ubl_lcd_clicked()) return exit_from_g26();
-          #endif
-
-          if (ELAPSED(millis(), next)) {
-            next = millis() + 5000UL;
-            thermalManager.print_heaterstates();
-            SERIAL_EOL();
-          }
-          idle();
-        }
-    #if ENABLED(ULTRA_LCD)
-      }
-      lcd_setstatusPGM(PSTR("G26 Heating Nozzle."), 99);
-      lcd_quick_feedback();
-    #endif
-  #endif
-
-  // Start heating the nozzle and wait for it to reach temperature.
-  thermalManager.setTargetHotend(g26_hotend_temp, 0);
-  while (abs(thermalManager.degHotend(0) - g26_hotend_temp) > 3) {
-
-    #if ENABLED(NEWPANEL)
-      if (ubl_lcd_clicked()) return exit_from_g26();
-    #endif
-
-    if (ELAPSED(millis(), next)) {
-      next = millis() + 5000UL;
-      thermalManager.print_heaterstates();
-      SERIAL_EOL();
-    }
-    idle();
-  }
-
-  #if ENABLED(ULTRA_LCD)
-    lcd_reset_status();
-    lcd_quick_feedback();
-  #endif
-
-  return UBL_OK;
-}
-
-/**
- * Prime the nozzle if needed. Return true on error.
- */
-bool unified_bed_leveling::prime_nozzle() {
-
-  #if ENABLED(NEWPANEL)
-    float Total_Prime = 0.0;
-
-    if (g26_prime_flag == -1) {  // The user wants to control how much filament gets purged
-
-      has_control_of_lcd_panel = true;
-      lcd_setstatusPGM(PSTR("User-Controlled Prime"), 99);
-      chirp_at_user();
-
-      set_destination_from_current();
-
-      recover_filament(destination); // Make sure G26 doesn't think the filament is retracted().
-
-      while (!ubl_lcd_clicked()) {
-        chirp_at_user();
-        destination[E_AXIS] += 0.25;
-        #ifdef PREVENT_LENGTHY_EXTRUDE
-          Total_Prime += 0.25;
-          if (Total_Prime >= EXTRUDE_MAXLENGTH) return UBL_ERR;
-        #endif
-        G26_line_to_destination(planner.max_feedrate_mm_s[E_AXIS] / 15.0);
-
-        stepper.synchronize();    // Without this synchronize, the purge is more consistent,
-                                  // but because the planner has a buffer, we won't be able
-                                  // to stop as quickly. So we put up with the less smooth
-                                  // action to give the user a more responsive 'Stop'.
-        set_destination_from_current();
-        idle();
-      }
-
-      while (ubl_lcd_clicked()) idle();           // Debounce Encoder Wheel
-
-      #if ENABLED(ULTRA_LCD)
-        strcpy_P(lcd_status_message, PSTR("Done Priming")); // We can't do lcd_setstatusPGM() without having it continue;
-                                                            // So... We cheat to get a message up.
-        lcd_setstatusPGM(PSTR("Done Priming"), 99);
-        lcd_quick_feedback();
-      #endif
-
-      has_control_of_lcd_panel = false;
-
-    }
-    else {
-  #else
-  {
-  #endif
-    #if ENABLED(ULTRA_LCD)
-      lcd_setstatusPGM(PSTR("Fixed Length Prime."), 99);
-      lcd_quick_feedback();
-    #endif
-    set_destination_from_current();
-    destination[E_AXIS] += g26_prime_length;
-    G26_line_to_destination(planner.max_feedrate_mm_s[E_AXIS] / 15.0);
-    stepper.synchronize();
-    set_destination_from_current();
-    retract_filament(destination);
-  }
-
-  return UBL_OK;
-}
-
-#endif // UBL_G26_MESH_VALIDATION

Marlin/src/gcode/bedlevel/G42.cpp

@@ -44,17 +44,6 @@ void GcodeSuite::G42() {
       return;
     }
 
-    #if ENABLED(AUTO_BED_LEVELING_BILINEAR)
-      #define _GET_MESH_X(I) bilinear_start[X_AXIS] + I * bilinear_grid_spacing[X_AXIS]
-      #define _GET_MESH_Y(J) bilinear_start[Y_AXIS] + J * bilinear_grid_spacing[Y_AXIS]
-    #elif ENABLED(AUTO_BED_LEVELING_UBL)
-      #define _GET_MESH_X(I) ubl.mesh_index_to_xpos(I)
-      #define _GET_MESH_Y(J) ubl.mesh_index_to_ypos(J)
-    #elif ENABLED(MESH_BED_LEVELING)
-      #define _GET_MESH_X(I) mbl.index_to_xpos[I]
-      #define _GET_MESH_Y(J) mbl.index_to_ypos[J]
-    #endif
-
     set_destination_from_current();
     if (hasI) destination[X_AXIS] = _GET_MESH_X(ix);
     if (hasJ) destination[Y_AXIS] = _GET_MESH_Y(iy);

Marlin/src/gcode/bedlevel/ubl/G26.cpp

@@ -1,36 +0,0 @@
-/**
- * Marlin 3D Printer Firmware
- * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-/**
- * G26.cpp - Unified Bed Leveling
- */
-
-#include "../../../inc/MarlinConfig.h"
-
-#if ENABLED(UBL_G26_MESH_VALIDATION)
-
-#include "../../gcode.h"
-#include "../../../feature/bedlevel/ubl/ubl.h"
-
-void GcodeSuite::G26() { ubl.G26(); }
-
-#endif // UBL_G26_MESH_VALIDATION

Marlin/src/gcode/bedlevel/ubl/M421.cpp

@@ -29,7 +29,7 @@
 #if ENABLED(AUTO_BED_LEVELING_UBL)
 
 #include "../../gcode.h"
-#include "../../../feature/bedlevel/ubl/ubl.h"
+#include "../../../feature/bedlevel/bedlevel.h"
 
 /**
  * M421: Set a single Mesh Bed Leveling Z coordinate

Marlin/src/gcode/bedlevel/ubl/M49.cpp

@@ -21,20 +21,20 @@
  */
 
 /**
- * M49.cpp - Unified Bed Leveling
+ * M49.cpp - Toggle the G26 debug flag
  */
 
 #include "../../../inc/MarlinConfig.h"
 
-#if ENABLED(UBL_G26_MESH_VALIDATION)
+#if ENABLED(G26_MESH_VALIDATION)
 
 #include "../../gcode.h"
 #include "../../../feature/bedlevel/bedlevel.h"
 
 void GcodeSuite::M49() {
-  ubl.g26_debug_flag ^= true;
+  g26_debug_flag ^= true;
-  SERIAL_PROTOCOLPGM("UBL Debug Flag turned ");
+  SERIAL_PROTOCOLPGM("G26 Debug ");
-  serialprintPGM(ubl.g26_debug_flag ? PSTR("on.") : PSTR("off."));
+  serialprintPGM(g26_debug_flag ? PSTR("on.") : PSTR("off."));
 }
 
-#endif // UBL_G26_MESH_VALIDATION
+#endif // G26_MESH_VALIDATION

Marlin/src/gcode/gcode.cpp

@@ -207,7 +207,7 @@ void GcodeSuite::process_parsed_command() {
           break;
       #endif // INCH_MODE_SUPPORT
 
-      #if ENABLED(UBL_G26_MESH_VALIDATION)
+      #if ENABLED(G26_MESH_VALIDATION)
         case 26: // G26: Mesh Validation Pattern generation
           G26();
           break;
@@ -342,7 +342,7 @@ void GcodeSuite::process_parsed_command() {
         case 48: M48(); break;    // M48: Z probe repeatability test
       #endif
 
-      #if ENABLED(UBL_G26_MESH_VALIDATION)
+      #if ENABLED(G26_MESH_VALIDATION)
         case 49: M49(); break;    // M49: Turn on or off G26 debug flag for verbose output
       #endif
 

Marlin/src/gcode/gcode.h

@@ -55,7 +55,7 @@
  * G19  - Select Plane YZ (Requires CNC_WORKSPACE_PLANES)
  * G20  - Set input units to inches (Requires INCH_MODE_SUPPORT)
  * G21  - Set input units to millimeters (Requires INCH_MODE_SUPPORT)
- * G26  - Mesh Validation Pattern (Requires UBL_G26_MESH_VALIDATION)
+ * G26  - Mesh Validation Pattern (Requires G26_MESH_VALIDATION)
  * G27  - Park Nozzle (Requires NOZZLE_PARK_FEATURE)
  * G28  - Home one or more axes
  * G29  - Start or continue the bed leveling probe procedure (Requires bed leveling)
@@ -357,7 +357,7 @@ private:
     static void G21();
   #endif
 
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
+  #if ENABLED(G26_MESH_VALIDATION)
     static void G26();
   #endif
 
@@ -453,7 +453,7 @@ private:
     static void M48();
   #endif
 
-  #if ENABLED(UBL_G26_MESH_VALIDATION)
+  #if ENABLED(G26_MESH_VALIDATION)
     static void M49();
   #endif
 

Marlin/src/inc/MarlinConfig.h

@@ -20,8 +20,8 @@
  *
  */
 
-#ifndef MARLIN_CONFIG_H
+#ifndef _MARLIN_CONFIG_H_
-#define MARLIN_CONFIG_H
+#define _MARLIN_CONFIG_H_
 
 #include "MarlinConfigPre.h"
 
@@ -36,8 +36,7 @@
 // Include all core headers
 #include "../core/enum.h"
 #include "../core/language.h"
-#include "../core/types.h"
 #include "../core/utility.h"
 #include "../core/serial.h"
 
-#endif // MARLIN_CONFIG_H
+#endif // _MARLIN_CONFIG_H_

Marlin/src/inc/MarlinConfigPre.h

@@ -20,8 +20,8 @@
  *
  */
 
-#ifndef MARLIN_CONFIGPRE_H
+#ifndef _MARLIN_CONFIGPRE_H_
-#define MARLIN_CONFIGPRE_H
+#define _MARLIN_CONFIGPRE_H_
 
 #include "../core/boards.h"
 #include "../core/macros.h"
@@ -31,4 +31,6 @@
 #include "../../Configuration_adv.h"
 #include "Conditionals_adv.h"
 
-#endif // MARLIN_CONFIGPRE_H
+#include "../core/types.h"
+
+#endif // _MARLIN_CONFIGPRE_H_

Marlin/src/inc/SanityCheck.h

@@ -183,10 +183,12 @@
   #error "MESH_NUM_[XY]_POINTS is now GRID_MAX_POINTS_[XY]. Please update your configuration."
 #elif defined(UBL_MESH_NUM_X_POINTS) || defined(UBL_MESH_NUM_Y_POINTS)
   #error "UBL_MESH_NUM_[XY]_POINTS is now GRID_MAX_POINTS_[XY]. Please update your configuration."
+#elif defined(UBL_G26_MESH_VALIDATION)
+  #error "UBL_G26_MESH_VALIDATION is now G26_MESH_VALIDATION. Please update your configuration."
 #elif defined(UBL_MESH_EDIT_ENABLED)
-  #error "UBL_MESH_EDIT_ENABLED is now UBL_G26_MESH_VALIDATION. Please update your configuration."
+  #error "UBL_MESH_EDIT_ENABLED is now G26_MESH_VALIDATION. Please update your configuration."
 #elif defined(UBL_MESH_EDITING)
-  #error "UBL_MESH_EDITING is now UBL_G26_MESH_VALIDATION. Please update your configuration."
+  #error "UBL_MESH_EDITING is now G26_MESH_VALIDATION. Please update your configuration."
 #elif defined(BLTOUCH_HEATERS_OFF)
   #error "BLTOUCH_HEATERS_OFF is now PROBING_HEATERS_OFF. Please update your configuration."
 #elif defined(BEEPER)
@@ -826,6 +828,10 @@ static_assert(1 >= 0
 
 #endif
 
+#if !HAS_MESH && ENABLED(G26_MESH_VALIDATION)
+  #error "G26_MESH_VALIDATION requires MESH_BED_LEVELING, AUTO_BED_LEVELING_BILINEAR, or AUTO_BED_LEVELING_UBL."
+#endif
+
 /**
  * LCD_BED_LEVELING requirements
  */

Marlin/src/lcd/ultralcd.cpp

@@ -60,6 +60,10 @@
   #include "../libs/buzzer.h"
 #endif
 
+#if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(G26_MESH_VALIDATION)
+  bool lcd_external_control; // = false
+#endif
+
 // Initialized by settings.load()
 int16_t lcd_preheat_hotend_temp[2], lcd_preheat_bed_temp[2], lcd_preheat_fan_speed[2];
 
@@ -4599,7 +4603,7 @@ void lcd_update() {
 
     #if ENABLED(AUTO_BED_LEVELING_UBL)
       // Don't run the debouncer if UBL owns the display
-      #define UBL_CONDITION !ubl.has_control_of_lcd_panel
+      #define UBL_CONDITION !lcd_external_control
     #else
       #define UBL_CONDITION true
     #endif
@@ -5070,7 +5074,7 @@ void lcd_reset_alert_level() { lcd_status_message_level = 0; }
         case encrot3: ENCODER_SPIN(encrot2, encrot0); break;
       }
       #if ENABLED(AUTO_BED_LEVELING_UBL)
-        if (ubl.has_control_of_lcd_panel) {
+        if (lcd_external_control) {
           ubl.encoder_diff = encoderDiff;   // Make the encoder's rotation available to G29's Mesh Editor
           encoderDiff = 0;                  // We are going to lie to the LCD Panel and claim the encoder
                                             // knob has not turned.
@@ -5086,14 +5090,14 @@ void lcd_reset_alert_level() { lcd_status_message_level = 0; }
     bool lcd_detected() { return true; }
   #endif
 
-  #if ENABLED(AUTO_BED_LEVELING_UBL)
+  #if ENABLED(G26_MESH_VALIDATION)
-
+    void lcd_chirp() {
-    void chirp_at_user() {
       lcd_buzz(LCD_FEEDBACK_FREQUENCY_DURATION_MS, LCD_FEEDBACK_FREQUENCY_HZ);
     }
+  #endif
 
-    bool ubl_lcd_clicked() { return LCD_CLICKED; }
+  #if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(G26_MESH_VALIDATION)
-
+    bool is_lcd_clicked() { return LCD_CLICKED; }
   #endif
 
 #endif // ULTIPANEL

Marlin/src/lcd/ultralcd.h

@@ -29,6 +29,12 @@
 
   #include "../Marlin.h"
 
+  #if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(G26_MESH_VALIDATION)
+    extern bool lcd_external_control;
+  #else
+    constexpr bool lcd_external_control = false;
+  #endif
+
   #define BUTTON_EXISTS(BN) (defined(BTN_## BN) && BTN_## BN >= 0)
   #define BUTTON_PRESSED(BN) !READ(BTN_## BN)
 
@@ -123,6 +129,10 @@
       void lcd_advanced_pause_show_message(const AdvancedPauseMessage message);
     #endif
 
+    #if ENABLED(G26_MESH_VALIDATION)
+      void lcd_chirp();
+    #endif
+
     #if ENABLED(AUTO_BED_LEVELING_UBL)
       void lcd_mesh_edit_setup(float initial);
       float lcd_mesh_edit();
@@ -208,6 +218,10 @@
     #define LCD_CLICKED false
   #endif
 
+  #if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(G26_MESH_VALIDATION)
+    bool is_lcd_clicked();
+  #endif
+
 #else // no LCD
 
   inline void lcd_update() {}