RepRap GCode Cheat Sheet

RepRap GCode Cheat Sheet

Comm. Parameters Description Example

G0 Axis [X/Y/Z] Position Rapid Movement G0 X50

G1 Axis [X/Y/Z/E] Position Feed [F] Controlled Movement G1 F150 X10

G4 Time in ms [P] Dwell / Wait G4 P500

G20 none Set units to inch G20

G21 none Set units to mm G21

G28 <Axis [X/Y/Z]> Home G28 X Y

G90 none Absolute Positioning G90

G91 none Relative Positioning G91

G92 Axis [X/Y/Z/E] Value Set Position to value G92 X5 Y10

Comm. Parameters Description Example

M0 none Stops everything after buffer is empty M0

M17 none Enable all stepper motors M17

M18 none Disable all stepper motors (move freely) M18

M20 none List files at the root folder of the SD Card M20

M21 none Initialise (mount) SD Card M21

M22 none Release (unmount) SD Card M22

M23 Filename Select File for Printing M23 print.gco

M24 none Start / Resume SD Card Print (see M23) M24

M25 none Pause SD Card Print (see M24) M25

M26 Bytes[S] Set SD Position in bytes M26 S12345

M27 none Report SD Print status M27

M28 Filename Write programm to SD Card M28 print.gco

M29 Filename Stop writing programm to SD Card M29 print.gco

M40 none Eject part (if possible) M40

M41 none Loop Programm(Stop with reset button!) M41

M42 none Stop if out of material (if supported) M42

M43 none Like M42 but leave heated bed on (if supported) M43

M80 none Turn on ATX Power (if neccessary) M80

M81 none Turn off ATX Power (if neccessary) M81

M84 none Stop idle hold (DO NOT use while printing!) M84

M92 Steps_per_unit[X] Programm set S steps per unit (resets) M92 X123

M101 none Set extruder 1 to forward (outdated) M101

M102 none Set extruder 1 to reverse (outdated) M102

M103 none Turn all extruders off (outdated) M103

M104 Temperature[S] Set extruder temperature (not waiting) M104 S100

M105 none Get extruder Temperature M105

M106 <PWM Value[S 0-255]> Set Fan Speed to S and start M106 S123

M107 none Turn Fan off M107

M108 none Set extruder speed (outdated) M108

M109 Temperature[S] Set extruder Temperature (waits till reached) M109 S123

M110 Line Number[N] Set current line number (next line number = line no. +1) N123 M110

M111 Debug Level [S] Set Debug Level M111 S6

M112 none Emergency Stop (Stop immediately) M112

M113 <PWM [S]> Set Extruder PWM to S (or onboard potent. If not given) M113 S0.7

M114 none Get Current Position M114

M115 none Get Firmeware Version and Capabilities M115

M116 none Wait for ALL temperatures M116

M117 none Get Zero Position in steps M117

M119 none Get Endstop Status M119

M126 Time[P] Open extruder valve (if available) and wait for P ms M126 P500

M127 Time[P] Close extruder valve (if available) and wait for P ms M127 P500

M128 PWM[S] Set internal extruder pressure S255 eq max M128 S123

M129 Time[P] Turn off extruder pressure and wait for P ms M129 P500

M140 Degrees[S] Set heated bed temperature to S (not waiting) M140 S55

M141 Degrees[S] Set chamber temperature to S (not waiting) M141 S30

M142 Pressure[S] Set holding pressure to S bar M142 S1

M143 Degrees[S] Set maximum hot-end temperture M143 S275

M160 No.[S] Set number of materials extruder can handle M160 S4

M203 Offset[Z] Set Z offset (stays active even after power off) M203 Z-0.1

M226 none Pauses printing (like pause button) M226

M227 Steps[P/S] Enables Automatic Reverse and Prime M227 P1500 S1500

M228 none Disables Automatic Reverse and Prime M228

M229 Rotations[P/S] Enables Automatic Reverse and Prime M229 P1.0 S1.0

M230 [S] Enable / Disable wait for temp.(1 = Disable 0 = Enable) M230 S1

M240 none Start conveyor belt motor M240

M241 none Stop conveyor belt motor M241

M245 none Start cooler fan M245

M246 none Stop cooler fan M246

M300 Freq.[S] Duration[P] Beep with S Hz for P ms M300 S300 P1000

T No. Select extruder no. (starts with 0) T1