G0 -> G1

• G1 - Coordinated Movement X Y Z E

• G2 - CW ARC

• G3 - CCW ARC

• G4 - Dwell S or P

• 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 or more points. Will fail if you haven't homed yet.

• G30 - Single Z Probe, probes bed at current XY location.

• G31 - Dock sled (Z_PROBE_SLED only)

• G32 - Undock sled (Z_PROBE_SLED only)

• G90 - Use Absolute Coordinates

• G91 - Use Relative Coordinates

• G92 - Set current position to coordinates 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 while printing from SD card files):

•     syntax "M32 /path/filename#", or "M32 S<startpos bytes> !filename#"
  

•     Call gcode file : "M32 P !filename#" and return to caller file after finishing (similar to #include).
  

•     The '#' is necessary when calling from within sd files, as it stops buffer prereading
  

• 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. 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
  

•     IF AUTOTEMP is enabled, S<mintemp> B<maxtemp> F<factor>. Exit autotemp by any M109 without F
  

• 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

• M150 - Set BlinkM Color Output R: Red<0-255> U(!): Green<0-255> B: Blue<0-255> over i2c, G for green does not work.

• 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- 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) in mm/sec^2 also sets minimum segment time in ms (B20000) to prevent buffer under-runs 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/sec]

• 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- set speed factor override percentage

• M221 S- set extrude factor override percentage

• M226 P S- Wait until the specified pin reaches the state required

• M240 - Trigger a camera to take a photograph

• M250 - Set LCD contrast C (value 0..63)

• M280 - set servo position absolute. P: servo index, S: angle or microseconds

• M300 - Play beep sound S P

• M301 - Set PID parameters P I and D

• M302 - Allow cold extrudes, or set the minimum extrude S.

• M303 - PID relay autotune S sets the target temperature. (default target temperature = 150C)

• M304 - Set bed PID parameters P I and D

• M400 - Finish all moves

• M401 - Lower z-probe if present

• M402 - Raise z-probe if present

• M404 - N 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 to set delay in centimeters between sensor and extruder

• M406 - Turn off Filament Sensor extrusion control

• M407 - Displays measured filament diameter

• M500 - stores parameters 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] -

• M665 - set delta configurations

• M666 - set delta endstop adjustment

• M907 - Set digital trimpot motor current using axis codes.

• M908 - Control digital trimpot directly.

• M350 - Set microstepping mode.

• M351 - Toggle MS1 MS2 pins directly.

• ************ SCARA Specific - This can change to suit future G-code regulations

• M360 - SCARA calibration: Move to cal-position ThetaA (0 deg calibration)

• M361 - SCARA calibration: Move to cal-position ThetaB (90 deg calibration - steps per degree)

• M362 - SCARA calibration: Move to cal-position PsiA (0 deg calibration)

• M363 - SCARA calibration: Move to cal-position PsiB (90 deg calibration - steps per degree)

• M364 - SCARA calibration: Move to cal-position PSIC (90 deg to Theta calibration position)

• M365 - SCARA calibration: Scaling factor, X, Y, Z axis

• ************* SCARA End ***************

• M928 - Start SD logging (M928 filename.g) - ended by M29

• M999 - Restart after being stopped by error