Motor won't step at low jog rate

well this is how i ran it in the first place and i get the weird issue with one of the motors stopping working after a while, so i thought i'd give gantrykins a try in case the previous method was a problem..

I think this is what John was referring to...
linuxcnc.org/hardy/dapper/emc2/emc2/inde...buntu-doesnt?limit=6
or
www.linuxcnc.org/index.php/english/forum...rt-card?limitstart=0

Working for 5 or 10 minutes then stopping would seem to indicate a hardware problem

Do you have a pci parallel port card or another computer to try?

Rick G

I wonder if the drives either overheating due to wrong current limits etc , and therefore shutting down or power supply is not capable of running 4 steppers ..
I doubt the problem is software , sounds more of a hardware problem , try swapping axis around and see if the fault follows ..

It's not a *hardware* issue (i wrote software first time), i ran it with another software for an hour yesterday with no issues what so ever.

Yes i've tested changing the Y and the A, it's the A output on the controller that screws everything up. To me it sounds like a classic "stack overflow"-type problem..

I was looking at the posts relating to the parallel port, however it seems that the EPP problem is related to the charge pump in those and my charge pump works just fine with ubuntu.

I'll def. check the temperature of the G540 however, maybe that's my issue as i don't have any fans..