I’m kinda at a loss it may be old age or ignorance , how would one define the U axis (Rotary) to degrees instead of mm on a Cartesian CNC for M92 201 203 etc . Preferably to be a free axis with no limit switch .

A cheaper alternative that i have had success with https://www.thingiverse.com/thing:2786499

@dc42 thank you David.

@Stephen6309 they certainly do have unlimited rotation , unfortunately not helpful for cnc applications nor using a pendant.

@Sindarius thankyou , great work!

@Sindarius how do I install your plugin for keyboard control?

Fantastic work ! love it and works as expected .

@Phaedrux

https://forum.duet3d.com/topic/11389/cnc-style-pendant/2?_=1607728006898

@Phadrux The pendant only recognises the axis if it is named U. A,B,C or D wont work

@phaedrux, im not looking at having an argument i have read the change log over and over as well as the dozuki info , the issue im having is my axis is named U (it works with the pendant this way) changelog spesifies A,B,C,D.

Exerp from dozuki

M584: Set drive mapping
Parameters

Xnnn Driver number(s) for X motor(s)
Ynnn Driver number(s) for Y motor(s)
Znnn Driver number(s) for Z motor(s)
Rn (optional, supported in RRF 3.2beta1 and later) 0 = axes creates in this command are linear, 1 = axes created are rotational. If not present, then RRF 3.2beta3 and later assume UVW are linear and ABCD are rotational.
Sn (optional, supported in RRF 3.2beta3 and later) 0 = axes created in this command are treated as linear in feedrate calculations, 1 = axes created are treated as rotational in feedrate calculations. See section 2.1.2.5 of the NIST GCode standard for how the feedrate is interpreted. Default is S0 for linear axes and S1 for rotational axes (see the R parameter).
U, V, W, A, B, Cnnn Driver number(s) for additional axes U, V, W, A, B and C (UVW available in RepRapFirmware 1.16 and later; UVWABC available in RepRapFirmware 1.19 and later; UVWABCD available in RepRapFirmware 3.0 and later).
Ennn Driver number(s) for E motor(s)
Pnnn Number of visible axes, defaults to the total number of axes configured.

im looking for an unlimited rotational axis . as far as i understand Im required to compile my own firmware to make this happen , I am not capable of compiling firmware can anybody help?

The question is how ? im currently on 3.2.