[bjwx2]

Have a diy engraver, using nema 34 motors and cw8060 drivers, machine responds fine, but I have a problem with the output. If I send a perfect circle, it cuts an oblong. Does the same with every object I send. Somehow the length and width does not correspond to the object I send. I have tried several software programs and all do the same
thing, so it is not the software. Hope someone can help me with this, thanx!

[skrubol]

What is your controller? It's probably a setting in there.

[coherent]

If it's not binding and you're not loosing steps then it could be a couple of things.
- One of the drivers for the X or Y has the incorrect dip switch settings (microsteps) or simply differs from the other.
- The steps per units for either your x or y (or both) are not set to the correct amount.
- (Less likely) - The settings in your driver software (mach3?) on how to handle arcs is not correct (CV etc) which differs based on your cad/cam post gcode output. Which if not set correctly can cause some strange things to happen.
Good luck.

[bjwx2]

Thanks, I have resolved the problem gcode settings, apparently there was no exact setting on my controllers, so I had to do it with the $111=n setting until I achieved the desired result, thanks again!