Every once in a while I check out my laser to make sure things are correct. Today I was verifying the dimensions. I etch a 400mm x 200mm rectangle on a piece of paper. It’s dimensions are correct. I cut a 25mm x 25mm square and it’s dimensions are off by .2mm. If I scale that error up to 400mm the error would be just over an 1/8 of an inch.
Any ideas on why my step count over a long distance seems correct, but off quite a bit on a short distance?