Posts made by tntjet

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.

Hi, short of compiling my own firmware, is there an easy way to set up a rotational axis without a limit on a cnc ?

M550 PSPHINX CNC ; Set machine name
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S0 ; Drive 2 goes backwards
M569 P3 S1 ; Drive 3 goes forwards
M569 P4 S0 ; Drive 4 goes forwards
M584 X0:3 Y1 Z2 ; Apply custom drive mapping
M584 U4 S1

M92 X400 Y400 Z400 U53.33333 ; Set steps per mm
M350 X16 Y16 Z16 U16 I1 ; Configure microstepping with interpolation
M566 X500 Y500 Z500 U5000 ; Set maximum instantaneous speed changes (mm/min)
M203 X3000 Y3000 Z3000 U10000 ; Set maximum speeds (mm/min)
M201 X150 Y150 Z150 U500 ; Set accelerations (mm/s^2
M906 X2400 Y2400 Z2400 U2400 I30 ; Set motor currents (mA)

Legendary ! Thanks again.

Thank you so much @ bearer , you have made my evening.

is it possible to make this axis continuous in the M208?

Ok I see, that’s what I was missing , my axis has 600 steps per 360. 1.6666 per degree ?

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 .

Thank you David , i did try the changes it gives me the same increment on the first and second switch positions . i have reverted back to your original sketch . I appreciate your effort and responses.

It’s sad news , RIP .

Thats awsome David , if wanted to change the increments on the rotary encoder feed switch to .01, .1, 1 what would I need to change?

Thank you David !

Is it possible to control a 4th axis in position 4?