Hi guys I hope someone can help me.
My 3040T has started to drift right. It starts quite well then drifts .5mm if a rapid change in direction is there or it lifts to make a fresh cut.

On a simple lego block program the first pass is OK ish. 2nd pass cuts into the brick risers. And is off on the right by 0.96.

I set new alu Jaws in the vice and machined those manually with toggle. So I know they are true.

As when trying to engrave it steps each character up 0.3mm or wanders off diagonally.

Machine settings are
400,1500,400 all 3 axis mach3.
I don't know if it's software or hardware that's causing the problem. Screen jog shows on target. Tool tip tells a different story.

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