Good Morning Learned Peers. Hopefully one of you could answer (What I hope is) a simple question. The part that I am currently programming for has a a true position call out for Datum B (Ø 0.90) to Datum A (Please see att). The JPG that I have attached is the plan view. The underside of this piece is datum A (This face is on the cmm bed). Im guessing that this tolerance is something to do with perpendicularity as obviously there can be no dimensions from B to A. How would I tolerance this? I am measuring the cmm bed as my DTM A.
TIA
F.
TIA
F.
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