Best posts made by TechNi

Hello everybody

I am looking for an automated solution to align the nozzle of both print heads of an IDEX printer in X & Y direction where the print heads determine their offsets themselves with the help of a probe, as shown here:

I have already found a couple of automated solutions like:

nudge by zruncho3d shown in the picture above (https://github.com/zruncho3d/nudge)
NozzleAlign Ball Probe by viesturz (https://github.com/viesturz/NozzleAlign)

There are also some manual solutions like:

TAMV by Danal (https://github.com/HaythamB/TAMV?tab=readme-ov-file)
XY calibration tool by EmberPrototypes (https://www.emberprototypes.com/products/cxc)

I have tested the calibration tool by EmberPrototypes and it works fine (much better than the calibration prints) but it's far from automated.

I wish to use either the nudge or the ball probe but both probes provide the code only for Klipper.

I wonder if anyone has managed to get them to work under RRF or if there exists another similar solution for Duet users?

Cheers
TechNi

Edit: After further digging, maybe this can be coded relatively simply with M558 & M585?

@t3p3tony

I didn't have a delay in my config.g but I added one at the beginning for testing purposes and it does not make any difference (well except that it takes longer ofc).

Sending M98 P"config.g" does not generate any errors.

@Marcossf

When I send M112, there are actually no errors and the homing works fine, just like pre 3.4-b5 (even the thing with the different motor speed, might have been a one-time thing)

When I send M999, I get the errors. Also when I change the config.g and reset the board (which probably is also M999?).

@owend This is neat. I've never used global variables before but this might actually solve other problems too, thanks!

@fcwilt @Phaedrux I think I'll use G92 then in combination with global variables. Thanks a lot!

Apologies for resurrecting this old topic but I am currently also looking for .step files to properly design the toolhead of my printer.

Also sorry for the criticism that follows, I am usually very fond of Duet3d's products but I think it's a bit of a shame that for a 70€ sensor that is mostly installed in custom 3D printers, there is no step file readily available from the manufacturer. The available stl file is great for printing purposes but sub-optimal for CAD design.

I think this .step file could be easily made available and spare the designers (and potential customers!) the headache to dig through the whole internet or create the model themselves.