Topics

1

General Mach Discussion / z drive motor locking up

« on: January 16, 2010, 03:17:44 PM »

Today when I went to use the machine the z up locks up when moving at full rate. I can set the rate as high as 90% but as soon as it trys to move at 100% it locks up and you can see the drive actually trying to go in the oposite direction. It does this when manually moving the spindle or running a program. As soon as it trys to move to the rapid clearance height it locks up, the dro counter still moves in the right direction but then everythiing is thrown off.
I've tried a reboot, a mach 3 update and nothing has changed.
Any ideas?
Thanks
Randy