flexi-bot/docs/marlin/_gcode/G012.md

tag	title	brief	experimental	since	requires	group	codes	notes	parameters	examples
g012	Clean the Nozzle	Perform the nozzle cleaning procedure.	true	1.1.0	NOZZLE_CLEAN_FEATURE	nozzle	G12	Default behavior is defined by `NOZZLE_CLEAN_STROKES`, `NOZZLE_CLEAN_START_POINT`, `NOZZLE_CLEAN_END_POINT`, `NOZZLE_CLEAN_TRIANGLES`, `NOZZLE_CLEAN_CIRCLE_MIDDLE`, `NOZZLE_CLEAN_CIRCLE_RADIUS` and `NOZZLE_CLEAN_GOBACK`. With `NOZZLE_CLEAN_GOBACK` enabled, the nozzle automatically returns to the XYZ position before `G12`.	tag optional description values P true Pattern style selection tag description 0 Linear move back and forth tag description 1 Move in a zigzag pattern tag description 2 Move in a circular pattern tag optional description values R true Radius of nozzle cleaning circle tag type radius float tag optional description values S true Number of repetitions of the pattern tag type count int tag optional description values T true Number of triangles in the zigzag pattern tag type count int tag optional description values X true Include X motion when cleaning with limited axes. (Leave out `X`, `Y`, and `Z` for non-limited cleaning.) type flag tag optional description values Y true Include Y motion when cleaning with limited axes. (Leave out `X`, `Y`, and `Z` for non-limited cleaning.) type flag tag optional description values Z true Include Z motion when cleaning with limited axes. (Leave out `X`, `Y`, and `Z` for non-limited cleaning.) type flag	pre code The most basic example is to use the command without any arguments, this will default to a stroke based pattern which will be stroked `NOZZLE_CLEAN_STROKES` times. G12 ; stroke pattern (default) pre code To generate a three triangle zig-zag pattern which will be stroked one time use the following command. G12 P1 S1 T3 ; zig-zag pattern with 3 triangles pre code To generate a 10mm radius circle which will be stroked one time use the following command. G12 P2 S1 R10 ; 10mm circle

Start the nozzle cleaning process. Three types of cleaning patterns are supported: straight strokes, zigzags and circles. This feature requires a dedicated cleaning area on or outside the bed, but within reach of the nozzle. The pattern may be repeated as many times as desired.