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Merge branch 'Marlin_v1' of https://github.com/ErikZalm/Marlin into Marlin_v1

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This commit is contained in:
Bernhard Kubicek 2011-11-06 19:49:04 +01:00
commit 163efdf1c7
4 changed files with 707 additions and 753 deletions
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4
Marlin/Configuration.h
View file

@ -14,8 +14,9 @@
// Gen6 = 5,
// Sanguinololu 1.2 and above = 62
// Ultimaker = 7,
// Teensylu = 8
#define MOTHERBOARD 7
//#define MOTHERBOARD 5
//// Thermistor settings:
@ -58,7 +59,6 @@ const bool ENDSTOPS_INVERTING = true; // set to true to invert the logic of the
// #define ULTRA_LCD //any lcd
#define ULTIPANEL
#define ULTIPANEL
#ifdef ULTIPANEL
//#define NEWPANEL //enable this if you have a click-encoder panel

111
Marlin/Marlin.pde
View file

@ -1152,8 +1152,8 @@ inline void get_coordinates()
inline void get_arc_coordinates()
{
get_coordinates();
if(code_seen("I")) offset[0] = code_value();
if(code_seen("J")) offset[1] = code_value();
if(code_seen('I')) offset[0] = code_value();
if(code_seen('J')) offset[1] = code_value();
}
void prepare_move()
@ -1165,119 +1165,16 @@ void prepare_move()
}
void prepare_arc_move(char isclockwise) {
#if 0
if (radius_mode) {
/*
We need to calculate the center of the circle that has the designated radius and passes
through both the current position and the target position. This method calculates the following
set of equations where [x,y] is the vector from current to target position, d == magnitude of
that vector, h == hypotenuse of the triangle formed by the radius of the circle, the distance to
the center of the travel vector. A vector perpendicular to the travel vector [-y,x] is scaled to the
length of h [-y/d*h, x/d*h] and added to the center of the travel vector [x/2,y/2] to form the new point
[i,j] at [x/2-y/d*h, y/2+x/d*h] which will be the center of our arc.
d^2 == x^2 + y^2
h^2 == r^2 - (d/2)^2
i == x/2 - y/d*h
j == y/2 + x/d*h
O <- [i,j]
- |
r - |
- |
- | h
- |
[0,0] -> C -----------------+--------------- T <- [x,y]
| <------ d/2 ---->|
C - Current position
T - Target position
O - center of circle that pass through both C and T
d - distance from C to T
r - designated radius
h - distance from center of CT to O
Expanding the equations:
d -> sqrt(x^2 + y^2)
h -> sqrt(4 * r^2 - x^2 - y^2)/2
i -> (x - (y * sqrt(4 * r^2 - x^2 - y^2)) / sqrt(x^2 + y^2)) / 2
j -> (y + (x * sqrt(4 * r^2 - x^2 - y^2)) / sqrt(x^2 + y^2)) / 2
Which can be written:
i -> (x - (y * sqrt(4 * r^2 - x^2 - y^2))/sqrt(x^2 + y^2))/2
j -> (y + (x * sqrt(4 * r^2 - x^2 - y^2))/sqrt(x^2 + y^2))/2
Which we for size and speed reasons optimize to:
h_x2_div_d = sqrt(4 * r^2 - x^2 - y^2)/sqrt(x^2 + y^2)
i = (x - (y * h_x2_div_d))/2
j = (y + (x * h_x2_div_d))/2
*/
// Calculate the change in position along each selected axis
double x = target[gc.plane_axis_0]-gc.position[gc.plane_axis_0];
double y = target[gc.plane_axis_1]-gc.position[gc.plane_axis_1];
clear_vector(offset);
double h_x2_div_d = -sqrt(4 * r*r - x*x - y*y)/hypot(x,y); // == -(h * 2 / d)
// If r is smaller than d, the arc is now traversing the complex plane beyond the reach of any
// real CNC, and thus - for practical reasons - we will terminate promptly:
if(isnan(h_x2_div_d)) { FAIL(STATUS_FLOATING_POINT_ERROR); return(gc.status_code); }
// Invert the sign of h_x2_div_d if the circle is counter clockwise (see sketch below)
if (gc.motion_mode == MOTION_MODE_CCW_ARC) { h_x2_div_d = -h_x2_div_d; }
/* The counter clockwise circle lies to the left of the target direction. When offset is positive,
the left hand circle will be generated - when it is negative the right hand circle is generated.
T <-- Target position
^
Clockwise circles with this center | Clockwise circles with this center will have
will have > 180 deg of angular travel | < 180 deg of angular travel, which is a good thing!
\ | /
center of arc when h_x2_div_d is positive -> x <----- | -----> x <- center of arc when h_x2_div_d is negative
|
|
C <-- Current position */
// Negative R is g-code-alese for "I want a circle with more than 180 degrees of travel" (go figure!),
// even though it is advised against ever generating such circles in a single line of g-code. By
// inverting the sign of h_x2_div_d the center of the circles is placed on the opposite side of the line of
// travel and thus we get the unadvisably long arcs as prescribed.
if (r < 0) {
h_x2_div_d = -h_x2_div_d;
r = -r; // Finished with r. Set to positive for mc_arc
}
// Complete the operation by calculating the actual center of the arc
offset[gc.plane_axis_0] = 0.5*(x-(y*h_x2_div_d));
offset[gc.plane_axis_1] = 0.5*(y+(x*h_x2_div_d));
} else { // Offset mode specific computations
#endif
float r = hypot(offset[X_AXIS], offset[Y_AXIS]); // Compute arc radius for mc_arc
// }
// Set clockwise/counter-clockwise sign for mc_arc computations
// uint8_t isclockwise = false;
// if (gc.motion_mode == MOTION_MODE_CW_ARC) { isclockwise = true; }
// Trace the arc
mc_arc(current_position, destination, offset, X_AXIS, Y_AXIS, Z_AXIS, feedrate*feedmultiply/60.0/100.0, r, isclockwise);
// }
// As far as the parser is concerned, the position is now == target. In reality the
// motion control system might still be processing the action and the real tool position
// in any intermediate location.
for(int ii=0; ii < NUM_AXIS; ii++) {
current_position[ii] = destination[ii];
for(int i=0; i < NUM_AXIS; i++) {
current_position[i] = destination[i];
}
}

13
Marlin/motion_control.cpp
View file

@ -19,12 +19,8 @@
along with Grbl. If not, see <http://www.gnu.org/licenses/>.
*/
//#include "motion_control.h"
#include "Configuration.h"
#include "Marlin.h"
//#include <util/delay.h>
//#include <math.h>
//#include <stdlib.h>
#include "stepper.h"
#include "planner.h"
@ -35,10 +31,10 @@ void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8
{
// int acceleration_manager_was_enabled = plan_is_acceleration_manager_enabled();
// plan_set_acceleration_manager_enabled(false); // disable acceleration management for the duration of the arc
SERIAL_ECHOLN("mc_arc.");
float center_axis0 = position[axis_0] + offset[axis_0];
float center_axis1 = position[axis_1] + offset[axis_1];
float linear_travel = target[axis_linear] - position[axis_linear];
float extruder_travel = target[E_AXIS] - position[E_AXIS];
float r_axis0 = -offset[axis_0]; // Radius vector from center to current location
float r_axis1 = -offset[axis_1];
float rt_axis0 = target[axis_0] - center_axis0;
@ -60,6 +56,7 @@ void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8
*/
float theta_per_segment = angular_travel/segments;
float linear_per_segment = linear_travel/segments;
float extruder_per_segment = extruder_travel/segments;
/* Vector rotation by transformation matrix: r is the original vector, r_T is the rotated vector,
and phi is the angle of rotation. Based on the solution approach by Jens Geisler.
@ -90,7 +87,7 @@ void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8
float cos_T = 1-0.5*theta_per_segment*theta_per_segment; // Small angle approximation
float sin_T = theta_per_segment;
float arc_target[3];
float arc_target[4];
float sin_Ti;
float cos_Ti;
float r_axisi;
@ -100,6 +97,9 @@ void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8
// Initialize the linear axis
arc_target[axis_linear] = position[axis_linear];
// Initialize the extruder axis
arc_target[E_AXIS] = position[E_AXIS];
for (i = 1; i<segments; i++) { // Increment (segments-1)
if (count < N_ARC_CORRECTION) {
@ -122,6 +122,7 @@ void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8
arc_target[axis_0] = center_axis0 + r_axis0;
arc_target[axis_1] = center_axis1 + r_axis1;
arc_target[axis_linear] += linear_per_segment;
arc_target[E_AXIS] += extruder_per_segment;
plan_buffer_line(arc_target[X_AXIS], arc_target[Y_AXIS], arc_target[Z_AXIS], target[E_AXIS], feed_rate);
}

56
Marlin/pins.h
View file

@ -627,6 +627,62 @@
#endif
/****************************************************************************************
* Teensylu 0.7 pin assingments (ATMEGA90USB)
* Requires the Teensyduino software with Teensy2.0++ selected in arduino IDE!
****************************************************************************************/
#if MOTHERBOARD == 8
#define MOTHERBOARD 8
#define KNOWN_BOARD 1
#define X_STEP_PIN 0
#define X_DIR_PIN 1
#define X_ENABLE_PIN 39
#define X_MIN_PIN 13
#define X_MAX_PIN -1
#define Y_STEP_PIN 2
#define Y_DIR_PIN 3
#define Y_ENABLE_PIN 38
#define Y_MIN_PIN 14
#define Y_MAX_PIN -1
#define Z_STEP_PIN 4
#define Z_DIR_PIN 5
#define Z_ENABLE_PIN 23
#define Z_MIN_PIN 15
#define Z_MAX_PIN -1
#define E_STEP_PIN 6
#define E_DIR_PIN 7
#define E_ENABLE_PIN 19
#define HEATER_0_PIN 21 // Extruder
#define HEATER_1_PIN 20 // Bed
#define HEATER_2_PIN -1
#define FAN_PIN 22 // Fan
#define TEMP_0_PIN 7 // Extruder
#define TEMP_1_PIN 6 // Bed
#define TEMP_2_PIN -1
#define SDPOWER -1
#define SDSS 8
#define LED_PIN -1
#define PS_ON_PIN -1
#define KILL_PIN -1
#define ALARM_PIN -1
#ifndef SDSUPPORT
// these pins are defined in the SD library if building with SD support
#define SCK_PIN 9
#define MISO_PIN 11
#define MOSI_PIN 10
#endif
#endif
#ifndef KNOWN_BOARD
#error Unknown MOTHERBOARD value in configuration.h