3DPrinting/MarlinFirmware
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Code Issues Releases Wiki Activity
cb676cdf39
MarlinFirmware/Documentation/GCodes.md
Gina Häußge 63b62d8d4e Fixed in-line comments and escaping 
* "G1 X1 ; test" was not executing "G1 X1" due to never leaving comment mode.
  * "M117 Hello \;)" printed "Hello \" to the display due to not replacing serial_char properly.

Tested with the following commands:
    * M117 Hello ; test => displays "Hello" on display, ignores "test"
    * G1 X1 ; foo => moves 1mm in X, ignores "foo"
    * ; test => completely ignored, not even acknowledged
    * M117 Hello \;) => displays "Hello ;)" on display
    * M117 Hello \\;) => displays "Hello \" on display, ignores ")"
2015-03-05 23:30:34 +01:00

6.7 KiB
Raw Blame History

Implemented G Codes

G Codes

  • G0 -> G1
  • G1 - Coordinated Movement X Y Z E
  • G2 - CW ARC
  • G3 - CCW ARC
  • G4 - Dwell S[seconds] or P[milliseconds]
  • G10 - retract filament according to settings of M207
  • G11 - retract recover filament according to settings of M208
  • G28 - Home all Axis
  • G29 - Detailed Z-Probe, probes the bed at 3 points. You must be at the home position for this to work correctly.
  • G30 - Single Z Probe, probes bed at current XY location.
  • G31 - Dock Z Probe sled (if enabled)
  • G32 - Undock Z Probe sled (if enabled)
  • G90 - Use Absolute Coordinates
  • G91 - Use Relative Coordinates
  • G92 - Set current position to cordinates given

M Codes

  • M0 - Unconditional stop - Wait for user to press a button on the LCD (Only if ULTRA_LCD is enabled)
  • M1 - Same as M0
  • M17 - Enable/Power all stepper motors
  • M18 - Disable all stepper motors; same as M84
  • M20 - List SD card
  • M21 - Init SD card
  • M22 - Release SD card
  • M23 - Select SD file (M23 filename.g)
  • M24 - Start/resume SD print
  • M25 - Pause SD print
  • M26 - Set SD position in bytes (M26 S12345)
  • M27 - Report SD print status
  • M28 - Start SD write (M28 filename.g)
  • M29 - Stop SD write
  • M30 - Delete file from SD (M30 filename.g)
  • M31 - Output time since last M109 or SD card start to serial
  • M32 - Select file and start SD print (Can be used when printing from SD card)
  • M42 - Change pin status via gcode Use M42 Px Sy to set pin x to value y, when omitting Px the onboard led will be used.
  • M80 - Turn on Power Supply
  • M81 - Turn off Power Supply
  • M82 - Set E codes absolute (default)
  • M83 - Set E codes relative while in Absolute Coordinates (G90) mode
  • M84 - Disable steppers until next move, or use S[seconds] to specify an inactivity timeout, after which the steppers will be disabled. S0 to disable the timeout.
  • M85 - Set inactivity shutdown timer with parameter S[seconds]. To disable set zero (default)
  • M92 - Set axis_steps_per_unit - same syntax as G92
  • M104 - Set extruder target temp
  • M105 - Read current temp
  • M106 - Fan on
  • M107 - Fan off
  • M109 - Sxxx Wait for extruder current temp to reach target temp. Waits only when heating
  •     Rxxx Wait for extruder current temp to reach target temp. Waits when heating and cooling
  • M112 - Emergency stop
  • M114 - Output current position to serial port
  • M115 - Capabilities string
  • M117 - display message
  • M119 - Output Endstop status to serial port
  • M126 - Solenoid Air Valve Open (BariCUDA support by jmil)
  • M127 - Solenoid Air Valve Closed (BariCUDA vent to atmospheric pressure by jmil)
  • M128 - EtoP Open (BariCUDA EtoP = electricity to air pressure transducer by jmil)
  • M129 - EtoP Closed (BariCUDA EtoP = electricity to air pressure transducer by jmil)
  • M140 - Set bed target temp
  • M190 - Sxxx Wait for bed current temp to reach target temp. Waits only when heating
  •     Rxxx Wait for bed current temp to reach target temp. Waits when heating and cooling
  • M200 - D[millimeters]- set filament diameter and set E axis units to cubic millimeters (use S0 to set back to millimeters).
  • M201 - Set max acceleration in units/s^2 for print moves (M201 X1000 Y1000)
  • 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
  • M205 - advanced settings: minimum travel speed S=while printing T=travel only, B=minimum segment time X= maximum xy jerk, Z=maximum Z jerk, E=maximum E jerk
  • M206 - set additional homing offset
  • M207 - set retract length S[positive mm] F[feedrate mm/min] Z[additional zlift/hop], stays in mm regardless of M200 setting
  • M208 - set recover=unretract length S[positive mm surplus to the M207 S*] F[feedrate mm/min]
  • M209 - S[1=true/0=false] enable automatic retract detect if the slicer did not support G10/11: every normal extrude-only move will be classified as retract depending on the direction.
  • M218 - set hotend offset (in mm): T[extruder_number] X[offset_on_X] Y[offset_on_Y]
  • M220 - S[factor in percent] - set speed factor override percentage
  • M221 - S[factor in percent] - set extrude factor override percentage
  • M240 - Trigger a camera to take a photograph
  • M280 - Position an RC Servo P[index] S[angle/microseconds], ommit S to report back current angle
  • M300 - Play beep sound S[frequency Hz] P[duration ms]
  • 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)
  • M304 - Set bed PID parameters P I and D
  • M350 - Set microstepping mode.
  • M351 - Toggle MS1 MS2 pins directly.
  • M400 - Finish all moves
  • M401 - Lower z-probe if present
  • M402 - Raise z-probe if present
  • M404 - N[dia in mm] Enter the nominal filament width (3mm, 1.75mm) or will display nominal filament width without parameters
  • M405 - Turn on Filament Sensor extrusion control. Optional D[delay in cm] to set delay in centimeters between sensor and extruder
  • M406 - Turn off Filament Sensor extrusion control
  • M407 - Displays measured filament diameter
  • M500 - stores paramters in EEPROM
  • 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.
  • M503 - print the current settings (from memory not from EEPROM)
  • M540 - Use S[0|1] to enable or disable the stop SD card print on endstop hit (requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
  • M600 - Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
  • M907 - Set digital trimpot motor current using axis codes.
  • M908 - Control digital trimpot directly.
  • M928 - Start SD logging (M928 filename.g) - ended by M29
  • M999 - Restart after being stopped by error

Comments

Comments start at a ; (semicolon) and end with the end of the line:

N3 T0*57 ; This is a comment
N4 G92 E0*67
; So is this
N5 G28*22

(example taken from the RepRap wiki)

If you need to use a literal ; somewhere (for example within M117), you can escape semicolons with a \ (backslash):

 M117 Hello \;)

\ can also be used to escape \ itself, if you need a literal \ in front of a ;:

M117 backslash: \\;and a comment

Please note that hosts should strip any comments before sending GCODE to the printer in order to save bandwidth.