Originally Posted by toby51  Hi
When i jog the machine in the X & Y axis it is perfect.But when i jog the Z axis it just judders,the ballscrew tries to turn but just judders.I have changed the stepper motor,taken the ballscrew out it runs free.so i can't think of anything else it might be.
Thanks
Mike |
Mike what control software does it use?
The first thing to do before pulling motors off etc is lower the rapid speed and acceleration for the Z axis.
Drop it by at least half and see if that makes a difference.
Let us know the result.
Greg