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Hole to Hole TP clarification

Hello Team, this probably is simple, but I just want to clarify that hole-to-hole TP without a Rotate feature alignment is correct. When you only have a Plane -B- and a Datum -D- hole in this case TP callout, the Level would be the plane and origin in that WP, then origin the Datum -D- hole and that's it. Thank you for any help. Hole to hole TP 11-6-2023.docx
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  • In theory not exactly, but in practice, kind of.

    That said a couple of questions:

    1) Is Datum D just the one counter bore (I'm assuming that's what it's indicating) or is it 4x?

    2) Are you using Legacy dimensions? Or GeoTol/Xact measure dimensions?

    The correct method will depend on the answers to the above questions.

  • Thank you. The part has 4 holes like Datum -D-, but only one is designated the Datum. There is an arrow pointing to that Datum -D- hole that says 4X ( .855 +/- .002 on a Basic 13.864 B.C.) There is also an arrow to the small hole that say 4 X (0.350 +/- .0025 on a Basic 13.883 B.C) I am using Legacy PC-DMIS 2020.
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