G Codes

The idea is to generate as much documentation as possible about G-Codes and their usage to have a good reference about the G-Codes used in the printer itself and automatically generated in the cloud when slicing a STL file.

G-Codes used at startup

Some G-Codes are a g2 flavor (those with {}). They are interpreted by the g2 printer board and set special settings like turning on and off the LEDs or changing their color. For more information, refer to the G2 G-code docs here: https://github.com/synthetos/g2/wiki/Gcodes

G-Code	Function	Description
M100({he1st:%d})	Heat ext	Heat extruder to specified temperature, where %d is the material temperature
G92.1 X0 Y0 Z0 A0 B0	Home	Reset origin offsets on all axes
G28.2 X0 Y0	Home	Home and reset 0 on X/Y axes
G0 X110	Home	Travel to: X=110
M100({_leds:2})	Heat ext	LED On: red
M101 ({he1at:t})	Heat ext	Pause until extruder target temperature is reached
M100({_leds:3})	Level	LED On: blue
G28.2 Z0	Home	Home and reset 0 on Z axis
G0 X0 Y145 Z6	Level	Travel to: X=0 Y=145 Z=6
G38.2 Z-10 F200	Level	Probe toward Z=-10 with feed rate 200
G0 Z5	Level	Travel to: Z=5
M100({_leds:5})	Level	LED On: yellow
G0 X210 Y65	Level	Travel to: X=210 Y=65
G38.2 Z-10 F200	Level	Probe toward Z=-10 with feed rate 200
G0 Z5	Level	Travel to: Z=5
M100({_leds:6})	Level	LED On: magenta
G0 X0 Y10	Level	Travel to: X=0 Y=10
G38.2 Z-10 F200	Level	Probe toward Z=-10 with feed rate 200
G0 Z5	Level	Travel to: Z=5
M100({_leds:3})	Level	LED On: blue
M100 ({tram:1})	Level	Set and enable tramming matrix. This defines the Z plane based on the 3 probed points above (see G38.2 commands)
G92 A0	Prime	Set the extruder's origin to 0
M100({_leds:1})	Prime	LED On: white
G0 Z5	Z Offset	Travel to: Z=5
G92 Z%f	Z Offset	Set the Z-axis origin, where %f = 5 - the z offset
G0 X0 Y0 Z0.3	Prime	Travel to: X=0 Y=0 Z=0.3
G1 X220.000 A12 F1200	Prime	Extrude 12mm of filament while moving to X=220
G0 Y0.4	Prime	Travel to: Y=0.4
G1 X110.000 A18	Prime	Extrude 6mm more filament while moving back to X=110
G0 Z1	Prime	Travel to: Z=1
G92 A0	Prime	Set the extruder's origin to 0

Notes:

• All G0 commands moves are "traverse" or "travel" moves at maximum velocity while G1 commands perform a linear move with an extrusion feed rate.

Proposed changes

G-Code	Function	Description
G92.1 X0 Y0 Z0 A0 B0	Home	Reset origin offsets on all axes
G28.2 X0 Y0 Z0	Home	Home and reset 0 on all axes
M100({_leds:3})	Level	LED On: blue
G0 X0 Y145 Z6	Level	Travel to: X=0 Y=145 Z=6
G38.2 Z-10 F200	Level	Probe toward Z=-10 with feed rate 200
G0 Z5	Level	Travel to: Z=5
M100({_leds:5})	Level	LED On: yellow
G0 X210 Y65	Level	Travel to: X=210 Y=65
G38.2 Z-10 F200	Level	Probe toward Z=-10 with feed rate 200
G0 Z5	Level	Travel to: Z=5
M100({_leds:6})	Level	LED On: magenta
G0 X0 Y10	Level	Travel to: X=0 Y=10
G38.2 Z-10 F200	Level	Probe toward Z=-10 with feed rate 200
G0 Z5	Level	Travel to: Z=5
M100({_leds:3})	Level	LED On: blue
M100 ({tram:1})	Level	Set and enable tramming matrix. This defines the Z plane based on the 3 probed points above (see G38.2 commands)
G0 Z5	Z Offset	Travel to: Z=5
G92 Z%f	Z Offset	Set the Z-axis origin, where %f = 5 - the z offset
M100({_leds:2})	Heat	LED On: red
M140 Snnn	Heat	(optional, if enabled) Heat bed to specified temperature, where nnn is the bed temperature
M100({he1st:nnn})	Heat	Heat extruder to specified temperature, where nnn is the material temperature
M190 Snnn	Heat	(optional, if enabled) Pause until bed target temperature is reached
M101 ({he1at:t})	Heat	Pause until extruder target temperature is reached
G92 A0	Prime	Set the extruder's origin to 0
M100({_leds:1})	Prime	LED On: white
G0 X0 Y0 Z0.3	Prime	Travel to: X=0 Y=0 Z=0.3
G1 X220.000 A12 F1200	Prime	Extrude 12mm of filament while moving to X=220
G0 Y0.4	Prime	Travel to: Y=0.4
G1 X110.000 A18	Prime	Extrude 6mm more filament while moving back to X=110
G0 Z1	Prime	Travel to: Z=1
G92 A0	Prime	Set the extruder's origin to 0