| Code | Descripion |
|---|---|
| G0 | G1 |
| G1 | Coordinated Movement X Y Z E F(feedrate) P(Purge) |
| G2 | CW ARC |
| G3 | CCW ARC |
| G4 | Dwell S[seconds] or P[milliseconds], delay in Second or Millisecond |
| G5 | Bezier curve - from forums.reprap.org |
| G7 | Laser raster base64 |
| G10 | retract filament according to settings of M207 |
| G11 | retract recover filament according to settings of M208 |
| G12 | Nozzle Clean |
| G20 | Set input units to inches |
| G21 | Set input units to millimeters |
| G26 | Mesh Validation Pattern. (Requires G26_MESH_VALIDATION & AUTO_BED_LEVELING_UBL or MESH_BED_LEVELING or AUTO_BED_LEVELING_BILINEAR) |
| G27 | Nozzle Park |
| G28 | X Y Z Home all Axis. M for bed manual setting with LCD. B return to back point |
| G29 | Detailed Z probe, probes the bed at 3 or more points. Will fail if you haven't homed yet.G29 Fyyy Lxxx Rxxx Byyy for customer grid. |
| G30 | Single Z Probe, probes bed at current XY location. |
| G31 | Dock Z Probe sled (if enabled) |
| G32 | Undock Z Probe sled (if enabled) |
| G33 | Delta geometry AutocalibrationF<nfactor> P<npoint> Q<debugging> (Requires DELTA_AUTO_CALIBRATION_1)P<npoints> V<nverbose> (Requires DELTA_AUTO_CALIBRATION_2) |
| G38 | Probe target - similar to G28 except it uses the Z_MIN endstop for all three axes |
| G42 | Coordinated move to a mesh point. (Requires MESH_BED_LEVELING or AUTO_BED_LEVELING_BILINEAR) |
| G60 | Save current position coordinates (all axes, for active extruder).S<SLOT> - specifies memory slot # (0-based) to save into (default 0) |
| G61 | Apply/restore saved coordinates to the active extruder.X Y Z E - Value to add at stored coordinatesF<speed> - Set FeedrateS<SLOT> - specifies memory slot # (0-based) to restore from (default 0) |
| G90 | Use Absolute Coordinates |
| G91 | Use Relative Coordinates |
| G92 | Set current position to cordinates given |
| Code | Requires | Descripion |
|---|---|---|
| M0 | ULTRA_LCD | Unconditional stop - Wait for user to press a button on the LCD |
| M1 | \\ | Same as M0 |
| M3 | LASER | S<value> L<duration> P<ppm> D<diagnostic> B<set mode> in laser beam control |
| M4 | CNCROUTERS | S<value> - CNC clockwise speed |
| M5 | LASER or CNCROUTERS | Turn off laser beam or CNC |
| M6 | CNCROUTERS | Tool change CNC |
| M17 | - | Enable/Power all stepper motors |
| M18 | - | Disable all stepper motors; same as M84 |
| M20 | SDCARD | List SD card |
| M21 | SDCARD | Init SD card |
| M22 | SDCARD | Release SD card |
| M23 | SDCARD | Select SD file (M23 filename.g) |
| M24 | SDCARD | Start/resume SD print |
| M25 | SDCARD | Pause SD print |
| M26 | SDCARD | Set SD position in bytes (M26 S12345) |
| M27 | SDCARD | Report SD print status |
| M28 | SDCARD | Start SD write (M28 filename.g) |
| M29 | SDCARD | Stop SD write |
| M30 | SDCARD | Delete file from SD (M30 filename.g) |
| M31 | SDCARD | Output time since last M109 or SD card start to serial |
| M32 | SDCARD | Make directory |
| M33 | SDCARD | Stop printing, close file and save restart.gcode |
| M34 | SDCARD | Set SD Card Sorting Options |
| M35 | NEXTION | Upload Firmware to Nextion from SD |
| M36 | SDCARD | Set SD Card Sorting Options |
| 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. |
| M43 | ? | Display pin status, watch pins for changes, watch endstops & toggle LED, Z servo probe test, toggle pins Report name and state of pin(s) P<pin> - Pin to read or watch. If omitted, reads all pinsI - Flag to ignore Marlin's pin protectionW - Watch pins -reporting changes- until reset, click, or M108P<pin> - Pin to read or watch. If omitted, read/watch all pinsI - Flag to ignore Marlin's pin protectionE<bool> - Enable / disable background endstop monitoring- Machine continues to operate - Reports changes to endstops - Toggles LED when an endstop changes - Can not reliably catch the 5mS pulse from BLTouch type probes T - Toggle pin(s) and report which pin is being toggledS<pin> - Start Pin number. If not given, will default to 0L<pin> - End Pin number. If not given, will default to last pin defined for this boardI - Flag to ignore Marlin's pin protection Use with caution!!!R - Repeat pulses on each pin this number of times before continueing to next pinW - Wait time (in miliseconds) between pulses. If not given will default to 500S - Servo probe testP<index> - Probe index (optional - defaults to 0 |
| M44 | ? | Codes debug - report codes available (and how many of them there are)I - G-code listJ - M-code list |
| M48 | ? | Measure Z_Probe repeatability. M48 [P # of points] [X position] [Y position] [V_erboseness #] [E_ngage Probe] [L # of legs of travel] |
| M48 | G26_MESH_VALIDATION | Turn on or off G26 debug flag for verbose output. |
| M70 | ? | Power consumption sensor calibration |
| M75 | ? | Start the print job timer |
| M76 | ? | Pause the print job timer |
| M77 | ? | Stop the print job timer |
| M78 | ? | Show statistical information about the print jobs |
| M80 | ? | Turn on Power Supply |
| M81 | ? | Turn off Power, including Power Supply, if possible |
| 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 |
| M96 | ? | Print ZWobble value |
| M97 | ? | Set ZWobble parameter M97 A<Amplitude_in_mm> W<period_in_mm> P<phase_in_degrees> |
| M98 | ? | Print Hysteresis value |
| M99 | ? | Set Hysteresis parameter M99 X Y Z E |
| M100 | ? | Watch Free Memory (For Debugging Only) |
| M104 | ? | Set hotend target temp |
| M105 | ? | Read current temp |
| M106 | ? | P S F U L I |
| M107 | ? | P Fan off |
| M108 | ? | Break out of heating loops (M109, M190, M303). With no controller, breaks out of M0/M1. (Requires EMERGENCY_PARSER) |
| M109 | ? | S[xxx] - Wait for hotend current temp to reach target temp. Waits only when heatingR[xxx] - Wait for hotend current temp to reach target temp. Waits when heating and coolingIF AUTOTEMP is enabled, S<mintemp> B<maxtemp> F<factor>. Exit autotemp by any M109 without F |
| M110 | ? | Set the current line number |
| M111 | ? | Set debug flags with S. |
| M112 | ? | Emergency stop |
| M114 | ? | Output current position to serial port |
| M115 | EXTENDED_CAPABILITIES_REPORT* | Report capabilities. (* for extended capabilities) |
| M117 | ? | Display a message on the controller screen |
| M118 | ? | Display a message in the host console |
| M119 | ? | Output Endstop status to serial port |
| M120 | ? | Enable endstop detection |
| M121 | ? | Disable endstop detection |
| M122 | MIN_SOFTWARE_ENDSTOPS or MAX_SOFTWARE_ENDSTOPS | S<1=true/0=false> Enable or disable check software endstop |
| M125 | PARK_HEAD_ON_PAUSE | Save current position and move to pause park position |
| 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 hot bed target temp |
| M141 | ? | Set hot chamber target temp |
| M142 | ? | Set cooler target temp |
| M145 | ? | Set the heatup state H B F for S (0=PLA, 1=ABS) |
| M150 | BLINKM, RGB_LED, RGBW_LED, or PCA9632 | Set Status LED Color as R U B. Values 0-255. |
| M155 | ? | S<1/0> Enable/disable auto report temperatures. |
| M163 | COLOR_MIXING_EXTRUDER | Set a single proportion for a mixing extruder |
| M164 | COLOR_MIXING_EXTRUDER and MIXING_VIRTUAL_TOOLS | Save the mix as a virtual extruder |
| M165 | COLOR_MIXING_EXTRUDER | Set the proportions for a mixing extruder. Use parameters ABCDHI to set the mixing factors |
| M190 | ? | Sxxx - Wait for bed current temp to reach target temp. Waits only when heatingRxxx - Wait for bed current temp to reach target temp. Waits when heating and cooling |
| M191 | ? | Sxxx - Wait for chamber current temp to reach target temp. Waits only when heatingRxxx Wait for chamber current temp to reach target temp. Waits when heating and cooling |
| M192 | ? | Sxxx Wait for cooler current temp to reach target temp. Waits only when heatingRxxx Wait for cooler 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 Z1000 E0 S1000 E1 S1000 E2 S1000 E3 S1000) in mm/sec^2 |
| M203 | ? | Set maximum feedrate that your machine can sustain (M203 X200 Y200 Z300 E0 S1000 E1 S1000 E2 S1000 E3 S1000) in mm/sec |
| M204 | ? | Set Accelerations in mm/sec^2: S printing moves, R Retract moves(only E), T travel moves (M204 P1200 R3000 T2500) 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 | ? | T S - set extrude factor override percentage |
| M222 | ? | T S - set density extrude factor percentage for purge |
| 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 D and C. H[heaters] H = 0-3 Hotend, H = -1 BED, H = -2 CHAMBER, H = -3 COOLER, P[float] Kp term, I[float] Ki term, D[float] Kd term. With PID_ADD_EXTRUSION_RATE: C[float] Kc term, L[float] LPQ length |
| M302 | ? | Allow cold extrudes, or set the minimum extrude S. |
| M303 | ? | PID relay autotune: H[heaters] H = 0-3 Hotend, H = -1 BED, H = -2 CHAMBER, H = -3 COOLER, S sets the target temperature (default target temperature = 200C), C, R, U, R 0 = Classic Pid, 1 = Some overshoot, 2 = No Overshoot, 3 = Pessen Pid. |
| M305 | ? | Set thermistor and ADC parameters: H[heaters] H = 0-3 Hotend, H = -1 BED, H = -2 CHAMBER, H = -3 COOLER, A[float] Thermistor resistance at 25°C, B[float] BetaK, C[float] Steinhart-Hart C coefficien, R[float] Pullup resistor value, L[int] ADC low offset correction, O[int] ADC high offset correction, P[int] Sensor Pin. Set DHT sensor parameter: D0 P[int] Sensor Pin, S[int] Sensor Type (11, 21, 22). |
| M306 | ? | Set Heaters parameters: H[heaters] H = 0-3 Hotend, H = -1 BED, H = -2 CHAMBER, H = -3 COOLER, A[int] Pid Drive Min, B[int] Pid Drive Max, C[int] Pid Max, L[int] Min temperature, O[int] Max temperature, U[bool] Use Pid/bang bang, I[bool] Hardware Inverted, P[int] Pin |
| M350 | ? | Set microstepping mode. |
| M351 | ? | Toggle MS1 MS2 pins directly. |
| M355 | ? | Turn case lights on/off S on-off, P |
| M360 | MECH_?_SCARA | Move to cal-position ThetaA (0 deg calibration) |
| M361 | MECH_?_SCARA | Move to cal-position ThetaB (90 deg calibration - steps per degree) |
| M362 | MECH_?_SCARA | Move to cal-position PsiA (0 deg calibration) |
| M363 | MECH_?_SCARA | Move to cal-position PsiB (90 deg calibration - steps per degree) |
| M364 | MECH_?_SCARA | Move to cal-position PSIC (90 deg to Theta calibration position) |
| M380 | ? | Activate solenoid on active extruder |
| M381 | ? | Disable all solenoids |
| M400 | ? | Finish all moves |
| M401 | ? | Lower z-probe if present |
| M402 | ? | Raise z-probe if present |
| M404 | ? | D[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 |
| M408 | ? | Report JSON-style response |
| M410 | ? | Quickstop. Abort all the planned moves |
| M420 | ? | Enable/Disable Leveling (with current values) S1=enable S0=disable (Requires MBL, UBL or ABL), Z for leveling fade height (Requires ENABLE_LEVELING_FADE_HEIGHT) |
| M421 | ? | Set a single Z coordinate in the Mesh Leveling grid. M421 X Y Z' or 'M421 I J Z (Requires MBL, UBL or ABL BILINEAR) |
| M428 | ? | Set the home_offset logically based on the current_position |
| M450 | ? | Report Printer Mode |
| M451 | ? | Select FFF Printer Mode |
| M452 | ? | Select Laser Printer Mode |
| M453 | ? | Select CNC Printer Mode |
| 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) |
| M512 | ? | Print Extruder Encoder status Pin. (Requires Extruder Encoder) |
| M522 | ? | Use for reader o writer tag width MFRC522. M522 T R(read) W(write) L(print list data on tag) |
| M530 | ? | Enables explicit printing mode (S1) or disables it (S0). L can set layer count |
| M531 | ? | filename - Define filename being printed |
| M532 | ? | X<percent> L<curLayer> - update current print state progress (X=0..100) and layer L |
| M540 | ABORT_ON_ENDSTOP_HIT _FEATURE_ENABLED | Use S[0|1] to enable or disable the stop print on endstop hit |
| M595 | ? | Set hotend AD595 offset and gain |
| M600 | ? | Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal] |
| M605 | ? | Set dual x-carriage movement mode: Smode [ X Rduplication temp offset ] |
| M649 | ? | Set laser options. S L P B R F |
| M666 | ? | Delta geometry adjustment. |
| M851 | ? | Set X Y Z Probe Offset in current units. (Requires Probe) |
| M900 | ? | K R W H D - Set and/or Get advance K factor and WH/D ratio |
| M906 | ALLIGATOR or HAVE_TMC2130 | Set motor currents XYZ T0-4 E or Set or get motor current in milliamps using axis codes X, Y, Z, E. Report values if no axis codes given. (Requires ) |
| M907 | a board with digital trimpots | Set digital trimpot motor current using axis codes |
| M908 | DIGIPOTSS_PIN | Control digital trimpot directly |
| M911 | HAVE_TMC2130 | Report stepper driver overtemperature pre-warn condition |
| M912 | HAVE_TMC2130 | Clear stepper driver overtemperature pre-warn condition flag |
| M913 | HYBRID_THRESHOLD | Set HYBRID_THRESHOLD speed |
| M914 | SENSORLESS_HOMING | Set SENSORLESS_HOMING sensitivity |
| M928 | ? | Start SD logging (M928 filename.g) - ended by M29 |
| M995 | ? | X Y Z Set origin for graphic in NEXTION |
| M996 | ? | S<scale> Set scale for graphic in NEXTION |
| M997 | ? | NPR2 Color rotate |
| M999 | ? | Restart after being stopped by error |