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Thanks for the answer, I understand how the limit3 component works, what I don't understand is how to configure the physical maximum/minimum and homing limit switches without going through the motion controller, that is, signals like:
joint.N.home-sw-in
joint.N.neg-lim-sw-in
joint.N.pos-lim-sw-in
They lie in motion control and would not be available if you were not using the motion controller.

Don't hesitate to correct me if I'm wrong Aciera, hehe, thanks, I'm waiting for a response.

Greetings to all.

Fantastic. I will incorporate the changes into 2.9.3. Thanks for sticking with it.

Please update in the future how you find the z level compensation works for you o your project.
Chris

I cloned what I though was 2.9.2 but VERSION says 2.10.0-pre0. It works but should I go back to 2.9.2 which is supposed to be stable. How do I get that version? Is there a branch name for it?

Many thanks for the quick reply.
1st job after we've eaten !
John

Broken pipe is a python error, i think, so has nothing to do with parallel port.
Set it to EPP and 0x378.
Got through stepconfig, enter values as correctly as you can, save the config, start said config and test the machine.
Use the Calibration from the Machine menu to tweak and tune the scale till you get precise distance traveled.

Copy the configs directory to a USB stick, if there are no special components made by you in use, that is all you need.
Ubuntu does not use RT kernels anymore (no idea why), but you can safely use Debian RT kernels in Ubuntu, i know it worked for sure with 6.1 i think.
Edit:
got reminded below by PhillC about why Ubuntu has not RT kernel, they do but it is behind a paywall!

My condolences.

I've just had a brain wave - checked the parport mode in the bios, and discovered the default setting for this pc is PS/2.
Now faced with decision - EPP or ECP ?
EPP gives 2 addresses - 378h or 278h ?
ECP gives 3 addresses - 378h, 278h and 3BCh.
In addition, ECP then offers a DMA channel setting - OFF, DMA1 or DMA3

Feel I've opened a can of worms, but may be on the right track !
John

EDIT I've tried EPP with both addresses, but in both case I get the 'Error - broken pipe' pop up.

I think Rod mentioned a while back some google video about it, had a look at it, it was good so i saved it somewhere... no idea where, i'll have a look later and post back if i can find it.
Not sure if it was C++ but those are quite similar.

Hello Chris,

As announced, I tested the modified module today. The Z-axis is now moving. So far, I haven’t noticed any incompatibilities that might be due to a version conflict. Will you coordinate with Bill regarding the change? Will the modifications will be incorporated into a future update?

Thank you very much for your support and the work on this fantastic project.
Klaus

I'm using ubuntu 22.04.4 with the initrd.img-5.15.0-1061-realtime kernel (PREEMPT_RT)
and a Mesa 6i25 pci card.

I get very good jitter so I'll stick with that for now.
I'm running a RIP install of 2.9.0~pre and want to upgrade to 2.9.2 but don't want to loose the edits I've done in the RIP directory.
Any suggestions?

All good.
Might be good to have a price estimate, though.

Sorry for the very late reply. Death in the family put all sideline projects on hold.

INTERP_IDLE has proven to be a mixed bag with other US components of mine. I'm looking at switching to C++ and getting a little lower level. If I have the chops.

I've been writing US components in Python, and want to test the C++ waters. Are there any resources to get me going? My C++ skills are middling...

I have an unused Mesa 5i25 / 7I77 setup for sale in the UK that has only been bench tested , but never fitted to a machine.
Also, 4 off Geckodrive G340's ,early ones, again, run on bench, but not on a machine.
Not sure of the protocol on this Forum, please advise.