- G0 / G1 : Linear Move
- G2 / G3 : Controlled Arc Move
- G4 : Dwell
- G5 : Bézier cubic spline
- G10 : Retract
- G11 : Recover
- G12 : Clean the Nozzle
- G20 : Inch Units
- G21 : Millimeter Units
- G26 : Mesh Validation Pattern
- G27 : Park toolhead
- G28 : Auto Home
- G29 : Bed Leveling (Manual)
- G29 : Bed Leveling (Automatic)
- G29 : Bed Leveling (Unified)
- G30 : Single Z-Probe
- G31 : Dock Sled
- G32 : Undock Sled
- G33 : Delta Auto Calibration
- G38.2 / G38.3 : Probe target
- G42 : Move to mesh coordinate
- G53 : Move in Machine Coordinates
- G54 / G55 / G56 / G57 / G58 / G59 / G59.1 / G59.2 / G59.3 : Workspace Coordinate System
- G90 : Absolute Positioning
- G91 : Relative Positioning
- G92 : Set Position
- G425 : Perform auto-calibration
- M0 / M1 : Unconditional stop
- M3 : Spindle CW / Laser On
- M4 : Spindle CCW / Laser On
- M5 : Spindle / Laser Off
- M17 : Enable Steppers
- M18 / M84 : Disable steppers
- M20 : List SD Card
- M21 : Init SD card
- M22 : Release SD card
- M23 : Select SD file
- M24 : Start or Resume SD print
- M25 : Pause SD print
- M26 : Set SD position
- M27 : Report SD print status
- M28 : Start SD write
- M29 : Stop SD write
- M30 : Delete SD file
- M31 : Print time
- M32 : Select and Start
- M33 : Get Long Path
- M34 : SDCard Sorting
- M42 : Set Pin State
- M43 : Debug Pins
- M43 T : Toggle Pins
- M48 : Probe Accuracy Test
- M73 : Set Print Progress
- M75 : Start Print Job Timer
- M76 : Pause Print Job
- M77 : Stop Print Job Timer
- M78 : Print Job Stats
- M80 : Power On
- M81 : Power Off
- M82 : E Absolute
- M83 : E Relative
- M85 : Inactivity Shutdown
- M92 : Set Axis Steps-per-unit
- M100 : Free Memory
- M104 : Set Hotend Temperature
- M105 : Report Temperatures
- M106 : Set Fan Speed
- M107 : Fan Off
- M108 : Break and Continue
- M109 : Wait for Hotend Temperature
- M110 : Set Line Number
- M111 : Debug Level
- M112 : Emergency Stop
- M113 : Host Keepalive
- M114 : Get Current Position
- M115 : Firmware Info
- M117 : Set LCD Message
- M118 : Serial print
- M119 : Endstop States
- M120 : Enable Endstops
- M121 : Disable Endstops
- M122 : TMC Debugging
- M125 : Park Head
- M126 : Baricuda 1 Open
- M127 : Baricuda 1 Close
- M128 : Baricuda 2 Open
- M129 : Baricuda 2 Close
- M140 : Set Bed Temperature
- M145 : Set Material Preset
- M149 : Set Temperature Units
- M150 : Set RGB(W) Color
- M155 : Temperature Auto-Report
- M163 : Set Mix Factor
- M164 : Save Mix
- M165 : Set Mix
- M166 : Gradient Mix
- M190 : Wait for Bed Temperature
- M200 : Set Filament Diameter
- M201 : Set Print Max Acceleration
- M203 : Set Max Feedrate
- M204 : Set Starting Acceleration
- M205 : Set Advanced Settings
- M206 : Set Home Offsets
- M207 : Set Firmware Retraction
- M208 : Firmware Recover
- M209 : Set Auto Retract
- M211 : Software Endstops
- M217 : Filament swap parameters
- M218 : Set Hotend Offset
- M220 : Set Feedrate Percentage
- M221 : Set Flow Percentage
- M226 : Wait for Pin State
- M240 : Trigger Camera
- M250 : LCD Contrast
- M260 : I2C Send
- M261 : I2C Request
- M280 : Servo Position
- M290 : Babystep
- M300 : Play Tone
- M301 : Set Hotend PID
- M302 : Cold Extrude
- M303 : PID autotune
- M304 : Set Bed PID
- M350 : Set micro-stepping
- M351 : Set Microstep Pins
- M355 : Case Light Control
- M360 : SCARA Theta A
- M361 : SCARA Theta-B
- M362 : SCARA Psi-A
- M363 : SCARA Psi-B
- M364 : SCARA Psi-C
- M380 : Activate Solenoid
- M381 : Deactivate Solenoids
- M400 : Finish Moves
- M401 : Deploy Probe
- M402 : Stow Probe
- M403 : MMU2 Filament Type
- M404 : Set Filament Diameter
- M405 : Filament Width Sensor On
- M406 : Filament Width Sensor Off
- M407 : Filament Width
- M410 : Quickstop
- M412 : Filament Runout
- M413 : Power-loss Recovery
- M420 : Bed Leveling State
- M421 : Set Mesh Value
- M425 : Backlash compensation
- M428 : Home Offsets Here
- M500 : Save Settings
- M501 : Restore Settings
- M502 : Factory Reset
- M503 : Report Settings
- M504 : Validate EEPROM contents
- M524 : Abort SD print
- M540 : Endstops Abort SD
- M569 : Set TMC stepping mode
- M600 : Filament Change
- M603 : Configure Filament Change
- M605 : Dual Nozzle Mode
- M665 : Delta Configuration
- M665 : SCARA Configuration
- M666 : Set Delta endstop adjustments
- M666 : Set dual endstop offsets
- M701 : Load filament
- M702 : Unload filament
- M851 : Z Probe Offset
- M852 : Bed Skew Compensation
- M900 : Linear Advance Factor
- M906 : TMC Motor Current
- M907 : Set Motor Current
- M908 : Set Trimpot Pins
- M909 : DAC Print Values
- M910 : Commit DAC to EEPROM
- M911 : TMC OT Pre-Warn Condition
- M912 : Clear TMC OT Pre-Warn
- M913 : Set Hybrid Threshold Speed
- M914 : TMC Bump Sensitivity
- M915 : TMC Z axis calibration
- M928 : Start SD Logging
- M999 : STOP Restart
- M1005 : Firmware Information
- M7219 : MAX7219 Control
M21 - Init SD card
Description
Use this command if the SD card isn’t detected automatically.
Notes
Requires SDSUPPORT
Parameters
M21