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Marlin-Artillery-M600/README.md

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WARNING:
--------
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THIS IS RELEASE CANDIDATE 2 FOR MARLIN 1.0.0
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The configuration is now split in two files
Configuration.h for the normal settings
Configuration_adv.h for the advanced settings
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Gen7T is not supported.
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Quick Information
===================
This RepRap firmware is a mashup between <a href="https://github.com/kliment/Sprinter">Sprinter</a>, <a href="https://github.com/simen/grbl/tree">grbl</a> and many original parts.
Derived from Sprinter and Grbl by Erik van der Zalm.
Sprinters lead developers are Kliment and caru.
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Grbls lead developer is Simen Svale Skogsrud. Sonney Jeon (Chamnit) improved some parts of grbl
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A fork by bkubicek for the Ultimaker was merged, and further development was aided by him.
Some features have been added by:
Lampmaker, Bradley Feldman, and others...
Features:
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* Interrupt based movement with real linear acceleration
* High steprate
* Look ahead (Keep the speed high when possible. High cornering speed)
* Interrupt based temperature protection
* preliminary support for Matthew Roberts advance algorithm
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For more info see: http://reprap.org/pipermail/reprap-dev/2011-May/003323.html
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* Full endstop support
* SD Card support
* SD Card folders (works in pronterface)
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* SD Card autostart support
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* LCD support (ideally 20x4)
* LCD menu system for autonomous SD card printing, controlled by an click-encoder.
* EEPROM storage of e.g. max-velocity, max-acceleration, and similar variables
* many small but handy things originating from bkubicek's fork.
* Arc support
* Temperature oversampling
* Dynamic Temperature setpointing aka "AutoTemp"
* Support for QTMarlin, a very beta GUI for PID-tuning and velocity-acceleration testing. https://github.com/bkubicek/QTMarlin
* Endstop trigger reporting to the host software.
* Updated sdcardlib
* Heater power reporting. Useful for PID monitoring.
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* PID tuning
* CoreXY kinematics (www.corexy.com/theory.html)
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The default baudrate is 250000. This baudrate has less jitter and hence errors than the usual 115200 baud, but is less supported by drivers and host-environments.
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Differences and additions to the already good Sprinter firmware:
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================================================================
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*Look-ahead:*
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Marlin has look-ahead. While sprinter has to break and re-accelerate at each corner,
lookahead will only decelerate and accelerate to a velocity,
so that the change in vectorial velocity magnitude is less than the xy_jerk_velocity.
This is only possible, if some future moves are already processed, hence the name.
It leads to less over-deposition at corners, especially at flat angles.
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*Arc support:*
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Slic3r can find curves that, although broken into segments, were ment to describe an arc.
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Marlin is able to print those arcs. The advantage is the firmware can choose the resolution,
and can perform the arc with nearly constant velocity, resulting in a nice finish.
Also, less serial communication is needed.
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*Temperature Oversampling:*
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To reduce noise and make the PID-differential term more useful, 16 ADC conversion results are averaged.
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*AutoTemp:*
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If your gcode contains a wide spread of extruder velocities, or you realtime change the building speed, the temperature should be changed accordingly.
Usually, higher speed requires higher temperature.
This can now be performed by the AutoTemp function
By calling M109 S<mintemp> T<maxtemp> F<factor> you enter the autotemp mode.
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You can leave it by calling M109 without any F.
If active, the maximal extruder stepper rate of all buffered moves will be calculated, and named "maxerate" [steps/sec].
The wanted temperature then will be set to t=tempmin+factor*maxerate, while being limited between tempmin and tempmax.
If the target temperature is set manually or by gcode to a value less then tempmin, it will be kept without change.
Ideally, your gcode can be completely free of temperature controls, apart from a M109 S T F in the start.gcode, and a M109 S0 in the end.gcode.
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*EEPROM:*
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If you know your PID values, the acceleration and max-velocities of your unique machine, you can set them, and finally store them in the EEPROM.
After each reboot, it will magically load them from EEPROM, independent what your Configuration.h says.
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*LCD Menu:*
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If your hardware supports it, you can build yourself a LCD-CardReader+Click+encoder combination. It will enable you to realtime tune temperatures,
accelerations, velocities, flow rates, select and print files from the SD card, preheat, disable the steppers, and do other fancy stuff.
One working hardware is documented here: http://www.thingiverse.com/thing:12663
Also, with just a 20x4 or 16x2 display, useful data is shown.
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*SD card folders:*
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If you have an SD card reader attached to your controller, also folders work now. Listing the files in pronterface will show "/path/subpath/file.g".
You can write to file in a subfolder by specifying a similar text using small letters in the path.
Also, backup copies of various operating systems are hidden, as well as files not ending with ".g".
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*SD card folders:*
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If you place a file auto[0-9].g into the root of the sd card, it will be automatically executed if you boot the printer. The same file will be executed by selecting "Autostart" from the menu.
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First *0 will be performed, than *1 and so on. That way, you can heat up or even print automatically without user interaction.
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*Endstop trigger reporting:*
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If an endstop is hit while moving towards the endstop, the location at which the firmware thinks that the endstop was triggered is outputed on the serial port.
This is useful, because the user gets a warning message.
However, also tools like QTMarlin can use this for finding acceptable combinations of velocity+acceleration.
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*Coding paradigm:*
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Not relevant from a user side, but Marlin was split into thematic junks, and has tried to partially enforced private variables.
This is intended to make it clearer, what interacts which what, and leads to a higher level of modularization.
We think that this is a useful prestep for porting this firmware to e.g. an ARM platform in the future.
A lot of RAM (with enabled LCD ~2200 bytes) was saved by storing char []="some message" in Program memory.
In the serial communication, a #define based level of abstraction was enforced, so that it is clear that
some transfer is information (usually beginning with "echo:"), an error "error:", or just normal protocol,
necessary for backwards compatibility.
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*Interrupt based temperature measurements:*
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An interrupt is used to manage ADC conversions, and enforce checking for critical temperatures.
This leads to less blocking in the heater management routine.
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Non-standard M-Codes, different to an old version of sprinter:
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==============================================================
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Movement:
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* G2 - CW ARC
* G3 - CCW ARC
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General:
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* M17 - Enable/Power all stepper motors. Compatibility to ReplicatorG.
* M18 - Disable all stepper motors; same as M84.Compatibility to ReplicatorG.
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* M30 - Print time since last M109 or SD card start to serial
* M42 - Change pin status via gcode
* M80 - Turn on Power Supply
* M81 - Turn off Power Supply
* M114 - Output current position to serial port
* M119 - Output Endstop status to serial port
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Movement variables:
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* M202 - Set max acceleration in units/s^2 for travel moves (M202 X1000 Y1000) Unused in Marlin!!
* M203 - Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E10000) in mm/sec
* M204 - Set default acceleration: S normal moves T filament only moves (M204 S3000 T7000) im mm/sec^2 also sets minimum segment time in ms (B20000) to prevent buffer underruns and M20 minimum feedrate
M206: always use homing ("homeing") offsets Previously the parameters set in M206 would only be used if a G82 command was sent with specific axis home values. This limits its usefulness. Really, we should have a way to adjust the XYZ homing of a machine in the eeprom. So as the first stage of this, make M206 affect every home command. The values set using M206 are now added to the configuration variables [XYZ]_HOME_POS. This is achieved by replacing all uses of [XYZ]_HOME_POS in the code by a new home_pos[] which includes the adjustment. We also have to adjust the uses of [XYZ]_{MIN,MAX}_POS similarly - see below. To allow axis_is_at_home to be written as a function taking an axis index rather than a macro taking an axis letter, we provide constant arrays in program memory containing the values of [XYZ]_{MIN,MAX,HOME}_POS from the compiled-in configuration. This is done with some helper macros to deal with the declaration (XYZ_CONSTS_FROM_CONFIG) and definition of the inline function which does the program memory access. We also introduce the overloaded function read_pgm_any, whose instances are produced with DEFINE_PGM_READ_ANY, which allows the access functions to automatically produce the correct type. The type- and pointer-massaging code in the access function boils down, when compiled, to a simple program memory access. A question arises: if the M206 offset is set, should this adjustment to the home position shift or change the possible range of movement permitted by the software endstops ? The documentation in Configuration.h describes these limits as: // Travel limits after homing Since this is a file containing physical limits, and actual suggested values for these configuration parameters appear to include a certain amount of slop, I've taken the view that these should be regarded as nominal physical distances from the limit switches, and that the permissible travel should be unaffected by M206. So for example with the (rather unrealistic) #define X_HOME_DIR -1 #define X_MIN_POS -20 #define X_HOME_POS 0 #define X_MAX_POS 100 no matter the setting of M206 X, the machine would be permitted to move from 20mm "beyond" the limit switch trigger point in the negative X direction and 100mm away from the limit switch in the positive X direction, for a total travel of 120mm. With M206 X-10 that would be considered to correspond to X coordinates -30 to +90. With M206 X+10 that would be considered to correspond to X coordinates -10 to +110. fixes #200 (in ErikZalm/Marlin). Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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* M206 - set home offsets. This sets the X,Y,Z coordinates of the endstops (and is added to the {X,Y,Z}_HOME_POS configuration options (and is also added to the coordinates, if any, provided to G82, as with earlier firmware)
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* M220 - set build speed mulitplying S:factor in percent ; aka "realtime tuneing in the gcode". So you can slow down if you have islands in one height-range, and speed up otherwise.
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* M221 - set the extrude multiplying S:factor in percent
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* M400 - Finish all buffered moves.
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Temperature variables:
* M301 - Set PID parameters P I and D
* M302 - Allow cold extrudes
* M303 - PID relay autotune S<temperature> sets the target temperature. (default target temperature = 150C)
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Advance:
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* M200 - Set filament diameter for advance
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* M205 - advanced settings: minimum travel speed S=while printing T=travel only, B=minimum segment time X= maximum xy jerk, Z=maximum Z jerk
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EEPROM:
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* M500 - stores paramters in EEPROM. This parameters are stored: axis_steps_per_unit, max_feedrate, max_acceleration ,acceleration,retract_acceleration,
minimumfeedrate,mintravelfeedrate,minsegmenttime, jerk velocities, PID
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* M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).
* M502 - reverts to the default "factory settings". You still need to store them in EEPROM afterwards if you want to.
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* M503 - print the current settings (from memory not from eeprom)
MISC:
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* M240 - Trigger a camera to take a photograph
* M999 - Restart after being stopped by error
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Configuring and compilation:
============================
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Install the arduino software IDE/toolset v22
http://www.arduino.cc/en/Main/Software
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For gen6 and sanguinololu the Sanguino directory in the Marlin dir needs to be copied to the arduino environment.
copy Marlin\sanguino <arduino home>\hardware\Sanguino
Install Ultimaker's RepG 25 build
http://software.ultimaker.com
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For SD handling and as better substitute (apart from stl manipulation) download
the very nice Kliment's printrun/pronterface https://github.com/kliment/Printrun
Copy the Ultimaker Marlin firmware
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https://github.com/ErikZalm/Marlin/tree/Marlin_v1
(Use the download button)
Start the arduino IDE.
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Select Tools -> Board -> Arduino Mega 2560 or your microcontroller
Select the correct serial port in Tools ->Serial Port
Open Marlin.pde
Click the Verify/Compile button
Click the Upload button
If all goes well the firmware is uploading
Start Ultimaker's Custom RepG 25
Make sure Show Experimental Profiles is enabled in Preferences
Select Sprinter as the Driver
Press the Connect button.
KNOWN ISSUES: RepG will display: Unknown: marlin x.y.z
That's ok. Enjoy Silky Smooth Printing.