The area it messes up is marked in yellow in the photo...Aaron Seltzer wrote: My Shapeoko is doing the same thing. There is a long scan from the second horizontal line (just over the concentric squares) over to the center vertical line. That is the exact spot mine messes up, repeatedly. The centerline, and everything after that is shifted left by about a 1/10th of an inch. Very repeatable. Not sure why yet. Have tried turning down the seek rate in GRBL but no improvement, but will work on it more tomorrow.
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