Quote Originally Posted by John S View Post
Looked at the pic and the steps are out on the setup.
You probably don't know what that means which proves you are thick but no sweat for a Welshman living in OZ we all feel sorry for you.

OK we need a DECENT picture of the stepper board in the controller box from vertically down, hell take 3 or 4.
then we need a screen shot of the setup page in Mach.

That's Config > Motor Tuning

Next double check it does have ball screws and the pitch is 4mm

If you get stuck, shout up we need a good laugh.
Last things first, short of tearing the machine down to measure the screw I got no idea if it's 4mm or not but going off appearance it's def a ball screw. The Config > Motor Tuning is set to machine manufacturer specs as shown in the manual that came with the machine.

As for images and screen caps here goes...

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