Need help with resolution problem!

[bjwx2]

DIY engraver, running Artcam. When I send a perfect circle to engraver it gives me an oblong cut. This happens with every object I send to engraver. Somehow the output never duplicates the input resolution or size specifications whether I input mm or inches. When I jog any axis with setting of 10mm it will only travel 5mm using grbl controller..
Update: x and z axis are responding accurately, it's the y axis that's only traveling half the distance of the
command sent? Would this be a problem with the lead screw?

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[Jim Dawson]

..........it's the y axis that's only traveling half the distance of the
command sent? Would this be a problem with the lead screw?

I would say that it's a Y axis calibration problem. Maybe the steps per rev are set incorrectly on the drive? Or, the steps / mm are set incorrectly in the controller?

[bjwx2]

Thanks for the reply, I'll check that out!

[bjwx2]

You're right, never dawned on me the leadscrews might be different as I ordered them all from the same vendor, thanx!