Thanks Ray
Ok, I'm curious .... just 1 more and I'll stay out ..
You've had this machine about a year, and has it ever run any decent parts?
Any diag. interpolated move is trash?
I see it stated where CAM and hand coding does the same.
Did you try a simple point to point rotated square pattern of 4 holes maybe ?
Start at X0,Y0
X1
hole
X0 Y1
hole
X-1 Y0
hole
X0 Y-1
hole
Then measure.
Just wondering if you tried something this simple as a test ?
This would maybe eliminate some possibilities.
Russ