Quote Originally Posted by Blackrat View Post
The stepper is straight into the pinion with no reduction box ? Is that right ?
Yes there is is no reduction, im starting to think this is probably the problem, it seemed ok on my old machine though, but i guess the extra mass combined with hitting a hard bit of plywood could be enough. It occured to me thT the x axis is cutting accross the grain, and the y is cutting down the grain, which might explain why the y axis seems ok.

Cheers

James