| G – Codes |
| G0 & G1: Move |
| G2 & G3: Controlled Arc Move |
| G4: Dwell |
| G6: Direct Stepper Move |
| G10: Set tool Offset and/or workplace coordinates and/or tool temperatures |
| G10: Retract |
| G11: Unretract |
| G12: Clean Tool |
| G17..19: Plane Selection (CNC specific) |
| G20: Set Units to Inches |
| G21: Set Units to Millimeters |
| G22: Firmware Retract |
| G23: Firmware Recover |
| G26: Mesh Validation Pattern |
| G27: Park toolhead |
| G28: Move to Origin (Home) |
| G29: Detailed Z-Probe |
| G29 Auto Bed Leveling (Marlin – MK4duo) |
| G29 Unified Bed Leveling (Marlin – MK4duo) |
| G29 Manual Bed Leveling (Marlin – MK4duo) |
| G29 Auto Bed Leveling (Repetier-Firmware) |
| G29 Mesh Bed Compensation (RepRapFirmware) |
| G29.1: Set Z probe head offset |
| G29.2: Set Z probe head offset calculated from toolhead position |
| G30: Single Z-Probe |
| G31: Set or Report Current Probe status |
| G31: Dock Z Probe sled |
| G32: Probe Z and calculate Z plane |
| Probe and calculate in Reprapfirmware |
| Probe and calculate in Repetier firmware |
| G32: Undock Z Probe sled |
| G33: Firmware dependent |
| G33: Measure/List/Adjust Distortion Matrix (Repetier – Redeem) |
| G33: Delta Auto Calibration (Marlin 1.1.x – MK4duo) |
| G34: Z Stepper Auto-Align |
| G34: Calculate Delta Height from toolhead position (DELTA) |
| G38.x Straight Probe (CNC specific) |
| G38.2 probe toward workpiece, stop on contact, signal error if failure |
| G38.3 probe toward workpiece, stop on contact |
| G38.4 probe away from workpiece, stop on loss of contact, signal error if failure |
| G38.5 probe away from workpiece, stop on loss of contact |
| G40: Compensation Off (CNC specific) |
| G42: Move to Grid Point |
| G53..59: Coordinate System Select (CNC specific) |
| G60: save current position to slot |
| G68: Coordinate rotation |
| G69: Cancel coordinate rotation |
| G75: Print temperature interpolation |
| G76: PINDA probe temperature calibration |
| G80: Cancel Canned Cycle (CNC specific) |
| G80: Mesh-based Z probe |
| G81: Mesh bed leveling status |
| G82: Single Z probe at current location |
| G83: Babystep in Z and store to EEPROM |
| G84: UNDO Babystep Z (move Z axis back) |
| G85: Pick best babystep |
| G86: Disable babystep correction after home |
| G87: Enable babystep correction after home |
| G88: Reserved |
| G90: Set to Absolute Positioning |
| G91: Set to Relative Positioning |
| G92: Set Position |
| G92.x: Reset Coordinate System Offsets (CNC specific) |
| G93: Feed Rate Mode (Inverse Time Mode) (CNC specific) |
| G94: Feed Rate Mode (Units per Minute) (CNC specific) |
| G98: Activate farm mode |
| G99: Deactivate farm mode |
| G100: Calibrate floor or rod radius |
| G130: Set digital potentiometer value |
| G131: Remove offset |
| G132: Calibrate endstop offsets |
| G133: Measure steps to top |
| G161: Home axes to minimum |
| G162: Home axes to maximum |
| G425: Perform auto-calibration with calibration cube |
| M-commands |
| M0: Stop or Unconditional stop |
| M1: Sleep or Conditional stop |
| M2: Program End |
| M3: Spindle On, Clockwise (CNC specific) |
| M4: Spindle On, Counter-Clockwise (CNC specific) |
| M5: Spindle Off (CNC specific) |
| M6: Tool change |
| M7: Mist Coolant On (CNC specific) |
| M8: Flood Coolant On (CNC specific) |
| M9: Coolant Off (CNC specific) |
| M10: Vacuum On (CNC specific) |
| M11: Vacuum Off (CNC specific) |
| M13: Spindle on (clockwise rotation) and coolant on (flood) |
| M16: Expected Printer Check |
| M17: Enable/Power all stepper motors |
| M18: Disable all stepper motors |
| M20: List SD card |
| M21: Initialize SD card |
| M22: Release SD card |
| M23: Select SD file |
| M24: Start/resume SD print |
| M25: Pause SD print |
| M26: Set SD position |
| M27: Report SD print status |
| M28: Begin write to SD card |
| M29: Stop writing to SD card |
| M30: Delete a file on the SD card |
| M30: Program Stop |
| M31: Output time since last M109 or SD card start to serial |
| M32: Select file and start SD print |
| M33: Get the long name for an SD card file or folder |
| M33: Stop and Close File and save restart.gcode |
| M34: Set SD file sorting options |
| M35: Upload firmware NEXTION from SD |
| M36: Return file information |
| M36.1: Return embedded thumbnail data |
| M37: Simulation mode |
| M38 Compute SHA1 hash of target file |
| M39 Report SD card information |
| M40: Eject |
| M41: Loop |
| M42: Switch I/O pin |
| M43: Stand by on material exhausted |
| M43: Pin report and debug |
| M44: Codes debug – report codes available |
| M44: Reset the bed skew and offset calibration |
| M45: Bed skew and offset with manual Z up |
| M46: Show the assigned IP address |
| M47: Show end stops dialog on the display |
| M48: Measure Z-Probe repeatability |
| M49: Set G26 debug flag |
| M70: Display message |
| M72: Play a tone or song |
| M73: Set/Get build percentage |
| 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: ATX Power On |
| M81: ATX Power Off |
| M82: Set extruder to absolute mode |
| M83: Set extruder to relative mode |
| M84: Stop idle hold |
| M85: Set Inactivity Shutdown Timer |
| M86: Set Safety Timer expiration time |
| M87: Cancel Safety Timer |
| M92: Set axis_steps_per_unit |
| M93: Send axis_steps_per_unit |
| M98: Call Macro/Subprogram |
| M99: Return from Macro/Subprogram |
| M101: Turn extruder 1 on (Forward), Undo Retraction |
| M102: Turn extruder 1 on (Reverse) |
| M103: Turn all extruders off, Extruder Retraction |
| M104: Set Extruder Temperature |
| M104 in Marlin Firmware |
| M104 in Teacup Firmware |
| M104 in RepRapFirmware and Klipper |
| M105: Get Extruder Temperature |
| M106: Fan On |
| M106 in RepRapFirmware |
| M106 in Teacup Firmware |
| M107: Fan Off |
| M108: Cancel Heating |
| M108: Set Extruder Speed (BFB) |
| M109: Set Extruder Temperature and Wait |
| M109 in Teacup |
| M109 in Marlin, MK4duo, Sprinter (ATmega port), RepRapFirmware, Prusa |
| M109 in Sprinter (4pi port) |
| M109 in MakerBot |
| M109 in Klipper |
| M110: Set Current Line Number |
| M111: Set Debug Level |
| M111 in RepRapFirmware |
| M111 in Repetier |
| M112: Full (Emergency) Stop |
| M113: Set Extruder PWM |
| M113: Host Keepalive |
| M114: Get Current Position |
| M115: Get Firmware Version and Capabilities |
| M116: Wait |
| M117: Get Zero Position |
| M117: Display Message |
| M118: Echo message on host |
| M118: Negotiate Features |
| M119: Get Endstop Status |
| M120: Push |
| M121: Pop |
| M120: Enable endstop detection |
| M121: Disable endstop detection |
| M122: Firmware dependent |
| M122: Diagnose (RepRapFirmware) |
| M122: Set Software Endstop (MK4duo) |
| M122: Debug Stepper drivers (Marlin) |
| M123: Firmware dependent |
| M123: Tachometer value (RepRap, Prusa & Marlin) |
| M123: Endstop Logic (MK4duo) |
| M124: Firmware dependent |
| M124: Immediate motor stop |
| M124: Set Endstop Pullup |
| M126: Open Valve |
| M126 in MakerBot |
| M127: Close Valve |
| M127 in MakerBot |
| M128: Extruder Pressure PWM |
| M129: Extruder pressure off |
| M130: Set PID P value |
| M131: Set PID I value |
| M132: Set PID D value |
| M132 in MakerBot |
| M133: Set PID I limit value |
| M133 in MakerBot |
| M134: Write PID values to EEPROM |
| M134 in MakerBot |
| M135: Set PID sample interval |
| M135 in MakerBot |
| M136: Print PID settings to host |
| M140: Set Bed Temperature (Fast) |
| M141: Set Chamber Temperature (Fast) |
| M142: Firmware dependent |
| M142: Holding Pressure |
| M142: Set Cooler Temperature (Fast) |
| M143: Maximum heater temperature |
| M144: Bed Standby |
| M146: Set Chamber Humidity |
| M149: Set temperature units |
| M150: Set LED color |
| M154: Auto Report Position |
| M155: Automatically send temperatures |
| M160: Number of mixed materials |
| M163: Set weight of mixed material |
| M164: Store weights |
| M165: Set multiple mix weights |
| M190: Wait for bed temperature to reach target temp |
| M191: Wait for chamber temperature to reach target temp |
| M192: Wait for Probe Temperature |
| M200: Set filament diameter |
| M201: Set max acceleration |
| M201.1: Set reduced acceleration for special move types |
| M202: Set max travel acceleration |
| M203: Firmware dependent |
| M203: Set maximum feedrate |
| M203 (Repetier): Set temperature monitor |
| M204: Firmware dependent |
| M204: Set default acceleration |
| M204 (Repetier): Set PID values |
| M205: Firmware dependent |
| M205: Advanced settings |
| M205 (Repetier): EEPROM Report |
| M206: Firmware dependent |
| M206: Offset axes |
| M206 (Repetier): Set EEPROM value |
| M207: Firmware dependent |
| M207: Set retract length |
| M207 Calibrate Z axis with Z max endstop |
| M207 (Repetier): Set jerk without saving to EEPROM |
| M208: Firmware dependent |
| M208: Set unretract length |
| M208 (RepRapFirmware): Set axis max travel |
| M209: Enable automatic retract |
| M210: Set homing feedrates |
| M211: Disable/Enable software endstops |
| M212: Set Bed Level Sensor Offset |
| M217: Toolchange Parameters |
| M218: Set Hotend Offset |
| M220: Set speed factor override percentage |
| M221: Set extrude factor override percentage |
| M220: Turn off AUX V1.0.5 |
| M221: Turn on AUX V1.0.5 |
| M222: Set speed of fast XY moves |
| M223: Set speed of fast Z moves |
| M224: Enable extruder during fast moves |
| M225: Disable on extruder during fast moves |
| M226: G-code Initiated Pause |
| M226: Wait for pin state |
| M227: Enable Automatic Reverse and Prime |
| M228: Disable Automatic Reverse and Prime |
| M229: Enable Automatic Reverse and Prime |
| M230: Disable / Enable Wait for Temperature Change |
| M231: Set OPS parameter |
| M232: Read and reset max. advance values |
| M240: Trigger camera |
| M240: Start conveyor belt motor / Echo off |
| M241: Stop conveyor belt motor / echo on |
| M245: Start cooler |
| M246: Stop cooler |
| M250: Set LCD contrast |
| M256: Set LCD brightness |
| M251: Measure Z steps from homing stop (Delta printers) |
| M260: i2c Send Data |
| M261: i2c Request Data |
| M280: Set servo position |
| M281: Set Servo Angles |
| M282: Detach Servo |
| M290: Babystepping |
| M291: Display message and optionally wait for response |
| M292: Acknowledge message |
| M300: Play beep sound |
| M301: Set PID parameters |
| MK4duo |
| Marlin |
| RepRapFirmware 1.15 onwards |
| RepRapFirmware 1.09 to 1.14 inclusive |
| Smoothie |
| Other implementations |
| Teacup |
| M302: Allow cold extrudes |
| M303: Run PID tuning |
| M304: Set PID parameters – Bed |
| M304 in RepRapPro version of Marlin: Set thermistor values |
| M305: Set thermistor and ADC parameters |
| M306: Set home offset calculated from toolhead position |
| M307: Set or report heating process parameters |
| M308: Set or report sensor parameters |
| M309: Set or report heater feedforward |
| M320: Activate autolevel (Repetier) |
| M321: Deactivate autolevel (Repetier) |
| M322: Reset autolevel matrix (Repetier) |
| M323: Distortion correction on/off (Repetier) |
| M340: Control the servos |
| M350: Set microstepping mode |
| M351: Toggle MS1 MS2 pins directly |
| M355: Turn case lights on/off |
| M360: Report firmware configuration |
| SCARA calibration codes (Morgan) |
| M360: Move to Theta 0 degree position |
| M361: Move to Theta 90 degree position |
| M362: Move to Psi 0 degree position |
| M363: Move to Psi 90 degree position |
| M364: Move to Psi + Theta 90 degree position |
| M365: SCARA scaling factor |
| M366: SCARA convert trim |
| M370: Morgan manual bed level – clear map |
| M371: Move to next calibration position |
| M372: Record calibration value, and move to next position |
| M373: End bed level calibration mode |
| M374: Save calibration grid |
| M375: Display matrix / Load Matrix |
| M376: Set bed compensation taper |
| M380: Activate solenoid |
| M381: Disable all solenoids |
| M400: Wait for current moves to finish |
| M401: Deploy Z Probe |
| M402: Stow Z Probe |
| M403: Set filament type (material) for particular extruder and notify the MMU |
| M404: Filament width and nozzle diameter |
| M405: Filament Sensor on |
| M406: Filament Sensor off |
| M407: Display filament diameter |
| M408: Report JSON-style response |
| M409: Query object model |
| M410: Quick-Stop |
| M412: Disable Filament Runout Detection |
| M413: Power-Loss Recovery |
| M415: Host Rescue |
| M416: Power loss |
| M420: Set RGB Colors as PWM (MachineKit) |
| M420: Leveling On/Off/Fade (Marlin) |
| M421: Set a Mesh Bed Leveling Z coordinate |
| M422: Set a G34 Point |
| M423: X-Axis Twist Compensation |
| M425: Backlash Correction |
| M450: Report Printer Mode |
| M451: Select FFF Printer Mode |
| M452: Select Laser Printer Mode |
| M453: Select CNC Printer Mode |
| M460: Define temperature range for thermistor-controlled fan |
| M470: Create Directory on SD-Card |
| M471: Rename File/Directory on SD-Card |
| M486: Cancel Object |
| M500: Store parameters in non-volatile storage |
| M501: Read parameters from EEPROM |
| M502: Restore Default Settings |
| M503: Report Current Settings |
| M504: Validate EEPROM |
| M505: Firmware dependent |
| M505: Clear EEPROM and RESET Printer |
| M505: Set configuration file folder |
| M509: Force language selection |
| M510: Lock Machine |
| M511: Unlock Machine with Passcode |
| M512: Set Passcode |
| M524: Abort SD Printing |
| M530: Enable printing mode |
| M531: Set print name |
| M532: Set print progress |
| M540: Set MAC address |
| M540 in Marlin: Enable/Disable “Stop SD Print on Endstop Hit” |
| M550: Set Name |
| M551: Set Password |
| M552: Set IP address, enable/disable network interface |
| M553: Set Netmask |
| M554: Set Gateway and/or DNS server |
| M555: Set compatibility |
| M556: Axis compensation |
| M557: Set Z probe point or define probing grid |
| M558: Set Z probe type |
| M559: Upload configuration file |
| M560: Upload web page file |
| M561: Set Identity Transform |
| M562: Reset temperature fault |
| M563: Define or remove a tool |
| M564: Limit axes |
| M565: Set Z probe offset |
| M566: Set allowable instantaneous speed change |
| M567: Set tool mix ratios |
| M568: Tool settings |
| M568: Turn off/on tool mix ratios (obsolete meaning in old RepRapFirmware versions) |
| M569: Stepper driver control |
| M569.1: Stepper driver closed loop configuration |
| M569.2: Read or write any stepper driver register |
| M569.3: Read Motor Driver Encoder |
| M569.4: Set Motor Driver Torque Mode |
| M569.5: Collect Data from Closed-loop Driver |
| M569.6: Execute Closed-loop Driver Tuning Move |
| M569.7: Configure motor brake port |
| M569.8: Read Axis Force |
| M569.9: Sets the driver sense resistor and maximum current |
| M570: Configure heater fault detection |
| M571: Set output on extrude |
| M572: Set or report extruder pressure advance |
| M573: Report heater PWM |
| M574: Set endstop configuration |
| M575: Set serial comms parameters |
| M576: Set SPI comms parameters |
| M577: Wait until endstop is triggered |
| M578: Fire inkjet bits |
| M579: Scale Cartesian axes |
| M580: Select Roland |
| M581: Configure external trigger |
| M582: Check external trigger |
| M584: Set drive mapping |
| M585: Probe Tool |
| M586: Configure network protocols |
| M587: Store WiFi host network in list, or list stored networks |
| M588: Forget WiFi host network |
| M589: Configure access point parameters |
| M590: Report current tool type and index |
| M591: Configure filament monitoring |
| M592: Configure nonlinear extrusion |
| M593: Configure Dynamic Acceleration Adjustment |
| M594: Enter/Leave Height Following mode |
| M595: Set movement queue length |
| M596: Select movement queue number |
| M600: Set line cross section |
| M600: Filament change pause |
| M601: Pause print |
| M602: Resume print |
| M603: Stop print (Prusa i3) |
| M603: Configure Filament Change |
| M605: Set dual x-carriage movement mode |
| M650: Set peel move parameters |
| M651: Execute peel move |
| M665: Set delta configuration |
| M666: Set delta endstop adjustment |
| M667: Select CoreXY mode |
| M668: Set Z-offset compensations polynomial |
| M669: Set kinematics type and kinematics parameters |
| M670: Set IO port bit mapping |
| M671: Define positions of Z leadscrews or bed leveling screws |
| M672: Program Z probe |
| M673: Align plane on rotary axis |
| M674: Set Z to center point |
| M675: Find center of cavity |
| M700: Level plate |
| M701: Load filament |
| M702: Unload filament |
| M703: Configure Filament |
| M704: Filament/MMU related gcode in development (reserve) |
| M705: Filament/MMU related gcode in development (reserve) |
| M706: Filament/MMU related gcode in development (reserve) |
| M707: Filament/MMU related gcode in development (reserve) |
| M708: Filament/MMU related gcode in development (reserve) |
| M709: Filament/MMU related gcode in development (reserve) |
| M710: Firmware dependent |
| M710: Controller Fan settings |
| M710: Erase the EEPROM and reset the board |
| M750: Enable 3D scanner extension |
| M751: Register 3D scanner extension over USB |
| M752: Start 3D scan |
| M753: Cancel current 3D scanner action |
| M754: Calibrate 3D scanner |
| M755: Set alignment mode for 3D scanner |
| M756: Shutdown 3D scanner |
| M800: Fire start print procedure |
| M801: Fire end print procedure |
| M808: Set or Goto Repeat Marker |
| M808 in Marlin 2.0.8 |
| M851: Set Z-Probe Offset |
| M851 in Marlin 1.0.2 |
| M851 in Marlin 1.1.0 |
| M851 in Marlin 2.0.0 |
| M851 in MK4duo 4.3.25 |
| M851 in RepRapFirmware 2.02 and later |
| M860 Wait for Probe Temperature |
| M861 Set Probe Thermal Compensation |
| M862: Print checking |
| M862.1: Check nozzle diameter |
| M862.2: Check model code |
| M862.3: Model name |
| M862.4: Firmware version |
| M862.5: Gcode level |
| M871: PTC Configuration |
| M876: Dialog handling |
| M890 Run User Gcode |
| M900 Set Linear Advance Scaling Factors |
| M905: Set local date and time |
| M906: Set motor currents |
| M907: Set digital trimpot motor |
| M908: Control digital trimpot directly |
| M909: Set microstepping |
| M910: Set decay mode |
| M910: TMC2130 init |
| M911: Configure auto save on loss of power (“power panic”) |
| M911: Set TMC2130 holding currents |
| M912: Set electronics temperature monitor adjustment |
| M912: Set TMC2130 running currents |
| M913: Set motor percentage of normal current |
| M913: Print TMC2130 currents |
| M914: Set/Get Expansion Voltage Level Translator |
| M914: Set TMC2130 normal mode |
| M915: Configure motor stall detection |
| M915: Set TMC2130 silent mode |
| M916: Resume print after power failure |
| M916: Set TMC2130 Stallguard sensitivity threshold |
| M917: Set motor standstill current reduction |
| M917: Set TMC2130 PWM amplitude offset (pwm_ampl) |
| M918: Configure direct-connect display |
| M918: Set TMC2130 PWM amplitude gradient (pwm_grad) |
| M928: Start SD logging |
| M929: Start/stop event logging to SD card |
| M950: Create heater, fan or GPIO/servo device |
| M951: Set height following mode parameters |
| M952: Set CAN expansion board address and/or normal data rate |
| M953: Set CAN-FD bus fast data rate |
| M954: Configure as CAN expansion board |
| M955: Configure Accelerometer |
| M956: Collect accelerometer data and write to file |
| M957: Raise event |
| M995: Calibrate Touch Screen |
| M997: Perform in-application firmware update |
| M998: Request resend of line |
| M999: Restart after being stopped by error |
