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General Mach Discussion / New Computer, now stepping problem
« on: September 28, 2011, 06:58:35 PM »
Hi
I have been running Mach3 on a K2CNC with stepper motors for a couple of years, no problem. The CNC computer failed so I bought another. Now when I "Go To Zero" which I believe is a full speed move, the motors just sit and squeal. Yet I can reference home and jog OK at lower speeds. With drivertest the old CPU was testing at about a 1800, the new CPU is testing at 3400. Still running 35Khz as I did with the old machine. Configuration was copied over exactly. Parallel port is outputting 5 volts. I also tried a PCI parallel port card and the same thing happens.
If I could I would underclock my CPU but the BIOS only allows overclocking.
Been poking around with some setting with no results. Any pointers?
Thanks
I have been running Mach3 on a K2CNC with stepper motors for a couple of years, no problem. The CNC computer failed so I bought another. Now when I "Go To Zero" which I believe is a full speed move, the motors just sit and squeal. Yet I can reference home and jog OK at lower speeds. With drivertest the old CPU was testing at about a 1800, the new CPU is testing at 3400. Still running 35Khz as I did with the old machine. Configuration was copied over exactly. Parallel port is outputting 5 volts. I also tried a PCI parallel port card and the same thing happens.
If I could I would underclock my CPU but the BIOS only allows overclocking.
Been poking around with some setting with no results. Any pointers?
Thanks