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excellent ! Thank you so much for your help!

One thing I have noted about the spindle. If you are using AOUT5 It has a separate enable pin that PNCconf does not connect. ( I didn't notice that till now)

If you could send me the .pncconf file maybe I can reproduce the error. This file will be in the linuxcnc/config folder.

Thank you for your guidance.

The spindle will use AOUT5 but I wasn't using that for my test, I was switching it on manually and just checking whether the AXIS velocity number registered anything.

I'll attach my .pncconf file. Note that I see this problem of the firmware resetting every time I restart pncconf and load my_linuxcnc_config. Not sure if I was clear about that.

Thanks,
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I still cannot reproduce this error...

That's weird but I don't think it's a problem.

As far as the spindle goes, I think I need to learn how to add a spindle speed indicator in AXIS. The Vel: number that's displayed now must not be for spindle speed but actual traverse speed.

Now I'm trying to control the A axis in AXIS and I cannot. Any kind of command results in a joint 3 following error and no movement. I imagine that this is not a PNCConf issue but some other configuration problem, so time for more research. Thanks for all your help.

PNCconf includes an option to add a gladvcp or pyvcp spindle speed indicator.
It can be displayed inside AXIS on the right side.

Did you do an open loop test with the A axis ?

OK I'll look into the indicator.

The A axis is the axis I had been doing the open loop testing with up to now and it seems to work fine open loop in pncconf. I'm not quite sure where to begin the diagnosis with AXIS. It's actually a C axis (I just set it up as A since that was easy with PNCConf) so soon I'll have to figure out how to configure linuxCNC for a C axis.