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Author Topic: HELP!! problem with stepper motors/controller  (Read 2216 times)

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HELP!! problem with stepper motors/controller
« on: March 24, 2007, 01:46:20 PM »
when running a program the Z axis would after 5 or 10mins lose steps on the way up almost like it didnt have enough torque and was grinding. This caused the dro and axis to go out of sync and ruin my work. I have just swopped the Z and Y axis controls over and now the Y axis does it and the Z works perfectly. What could this be? Is it something to do with the pins I am using? I have a good spec PC with and am running it through a PCI parallel port. It is driving me crazy as its my only production machine!!! Help  :)

Hood

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Re: HELP!! problem with stepper motors/controller
« Reply #1 on: March 24, 2007, 02:33:53 PM »
what did you swap? wiring  or just swap pin association in Mach?
Hood
Re: HELP!! problem with stepper motors/controller
« Reply #2 on: March 25, 2007, 05:54:19 AM »
I swapped the actual wiring out of the controller?

Hood

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Re: HELP!! problem with stepper motors/controller
« Reply #3 on: March 25, 2007, 06:26:58 AM »
Well if the problem  swaps axis when you swap the hardware it has to be the hardware rather than the software. Try swapping individual components on each axis until you find the culprit, ie swap a drive over, swap a motor over etc.
Hood

PS are all axis using same motors,drives,ballscrews etc, if not you will have to remember and retune when you swap axis hardware.