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tommylight wrote:

forum.linuxcnc.org/10-advanced-configura...ning-detailed-how-to
 

This reminds me I need to mount the XY limit switches. Some tech at the company that donated the mills physically removed them. Kind of understandable since you could not jog the machine off the limits as they outright interrupt the drive enable circuit. 

modname.update-hz is 0 by default i have not changed so this not the reason for error

It's also important to have the drive enables working so a following
error will disable the drives.

I have two relay outputs I need to get wired up. The default wiring does not give direct control of the drive enable relay which in turn energizes the main contactor. There is a reset relay that latches the enable relay and an error/e-stop relay that interrupts the enable relay.

I will pull the belts off all three servos. Need to figure out the ratio in any case.

All my Pi's are 4GB.

Along with my Rpi5 I also have a RPi400, basically the same as a RPi4 with an slightly upped clock speed. I can say I've never come across this issue (even when rod was polishing his iamge utility).
I don't know if this will actually help, but you could try comparing the config.txt files on the Linuxcnc image & the Rasp OS image and see if there is anything that sticks out. This is just a guess.

It might pay to monitor the 3v3 line when booting, both versions, and see if there is anything untoward. Again just another guess.

But yeah it does seem like a confusing issue.