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Multi-single segment profile (or positional) tolerance defined as datum

Multi-single segment profile (or positional) tolerance defined as datum

(OP)
Is there any reason this would not be allowed? I have never seen it.

RE: Multi-single segment profile (or positional) tolerance defined as datum

Nothing attached???

Certified Sr. GD&T Professional

RE: Multi-single segment profile (or positional) tolerance defined as datum

Generically, no. Any feature or group of features is eligible to be datum. It's a convenient short cut to use the FCF as an anchor since the FCF should have clearly related features and since the datum reference may depend on the allowed tolerance and datum reference frame.

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