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Make a precision calibration chessboard???

Posted: 12 Oct 2020, 15:54
by Popex
Hello, I am in need of fabricating a 12x9 square calibration chessboard with the best possible precision. I have tried laser printing on vinyl and then gluing it to flat glass, but I can't get better +/- 0.06mm.

Has anyone achieved +/- 0.01mm? What technique do you recommend?