I have a project that requires precise holes in exact locations. The holes are coming out undersized, a .250 comes out .2275 and a .50 hole is cut to .485.
This is using a 1/16 down cut bit miked at 1/16.
The holes appear to the naked eye to be round.
I have checked the X and Y movement and they are good using the ruler method and moving the gantry 10mm at a time from Easel. I have used both the inside the line and the cutout options. Same result.
Am I expecting too much in accuracy, if not any suggestions?