G-CODE Support
Here you will find all support resources for G-Code. Use CTRL-F to search for a specific code.
BASIC STEPS FOR WRITING G-CODE
HTTP://WWW.INSTRUCTABLES.COM/ID/HOW-TO-WRITE-G-CODE-BASICS/
GENERAL PROGRAMMING GUIDE G-CODE
HTTPS://GITHUB.COM/SYNTHETOS/TINYG/WIKI/GCODE-SUPPORT
HTTP://WWW.LINUXCNC.ORG/DOCS/2.4/HTML/GCODE_MAIN.HTML
BASIC STEPS FOR WRITING G-CODE
This table summarizes G-Code supported. axes means one or more of X,Y,Z,A,B,C.
| Gcode | Parameters | Command | Discription |
|---|---|---|---|
| G0 | axes | Straight Traverse | Traverse at maximum velocity. At least one axis must be present |
| G1 | axes, F | Straight Feed | Feed at feed rate F. At least one axis must be present |
| G2 | axes, F, I,J,K or R | Clockwise arc feed | Arc at feed rate F. Offset mode IJK or radius mode R |
| G3 | axes, F, I,J,K or R | Counter clockwise arc feed | Arc at feed rate F. Offset mode IJK or radius mode R |
| G4 | P | Dwell | Pause for P seconds |
| G10 L2 | axes, P | Set offset parameters | P selects coordinate system 1-6 |
| G17 | Select XY plane | G17, G18 and G19 set the plan in which the G2/G3 arcs are drawn | |
| G18 | Select XZ plane | ||
| G19 | Select YZ plane | ||
| G20 | Select inches units mode | All Gcode from this point on will be interpreted in inches | |
| G21 | Select mm units mode | All Gcode from this point on will be interpreted in millimeters | |
| G28 | axes | Go to G28.1 position | Optional axes specify an intermediate point |
| G28.1 | Set position for G28 | The current machine position is recorded (No parameters are provided) | |
| G28.2 | axes | Homing Sequence | Homes all axes present in command. At least one axis must be specified |
| G28.3 | axes | Set Absolute Position | Set axis to zero or other value. Use to zero axes that cannot otherwise be homed |
| G30 | axes | Go to G30.1 position | Optional axes specify an intermediate point |
| G30.1 | Set position for G30 | The current machine position is recorded (No parameters are provided) | |
| G53 | Select absolute coordinates | Non-Modal: Applies only to current block | |
| G54 | Select coord system 1 | G54 is typically used as the "normal" coordinate system and reflects the machine position | |
| G55 | Select coord system 2 | ||
| G56 | Select coord system 3 | ||
| G57 | Select coord system 4 | ||
| G58 | Select coord system 5 | ||
| G59 | Select coord system 6 | ||
| G61 | Exact path mode | Continuous motion between Gcode blocks - exact path will be traced - stops only if it must | |
| G61.1 | Exact stop mode | Motion will stop between each Gcode block | |
| G64 | Continuous path mode | Sacrifice path following accuracy in order to keep the feed rate up | |
| G80 | Cancel motion mode | ||
| G90 | Set absolute mode | ||
| G91 | Set incremental mode | ||
| G92 | axes | Set origin offsets | |
| G92.1 | Reset origin offsets | ||
| G92.2 | Suspend origin offsets | ||
| G92.3 | Resume origin offsets | ||
| G93 | Set inverse feedrate mode | ||
| G94 | Cancel inverse feedrate mode |
| Mcode | Parameters | Command | Discription |
|---|---|---|---|
| M0 | Program stop | ||
| M1 | Program stop | Optional program stop switch is not implemented so M1 is equivalent to M0 | |
| M2 | Program end | ||
| M30 | Program end | ||
| M60 | Program stop | ||
| M3 | S | Spindle on - CW | S is speed in RPM |
| M4 | S | Spindle on - CCW | S is speed in RPM |
| M5 | Spindle off | ||
| M6 | Change tool | No operation at this time | |
| M7 | Mist coolant on | Note that mist and flood share the same Coolant ON/OFF pin | |
| M8 | Flood coolant on | Note that mist and flood share the same Coolant ON/OFF pin | |
| M9 | All coolant off | Note that mist and flood share the same Coolant ON/OFF pin |
| Other | Parameters | Command | Discription |
|---|---|---|---|
| N | line number | label gcode block | Line numbers are allowed, handled, and may be reported back in status reports. Don't underestimate how useful this is for debugging Gcode files. |
| () | comment | gcode comment | Gcode comments are supported. They are stripped and ignored, except for messages (below) |
| ; | comment | alternate comment | A semicolon is an alternate way to delimit a comment. This is not Gcode "standard", but is used by Mach and some Reprap codes. (available as of build 378.05) |
| (msg....) | message | gcode message | Gcode messages are comments that begin with the characters msg (case insensitive). These will be echoed to the operator |