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Basic numbers

wrangler325
Team,

Is it ever acceptable to give basic numbers tolerance from a Profile of a Line feature control frame to report that Profile, instead of actually reporting as Profile, the basic numbers are reported? I may be wrong, but I do not agree with reporting profile this way as I have been told by another.
My understanding is Basic numbers never get tolerance, no matter what.

Thanks for any input.

Greg.
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  • I'm gonna start an argument, Basic numbers do have a Tolerance, but not to themselves, they are tied to a Feature Control Frame and that perfect number can fluctuate with the Tolerance given, even when you call out a position, Those hard numbers are given and results usually differ, but if they differ to much away from that Basic number, and fall out of the Tolerance in your FCF then well you might have wondered a little to far from your basic number. So I would argue they do have a tolerance, just not to themselves, you can't just say +/-.005 or anything like that. Also Basic Numbers are not necessary to record, But If you are scanning it's best practice to make sure the CAD model Matches Your BASIC numbers, Don't always assume your Engineer did it correctly.
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  • I'm gonna start an argument, Basic numbers do have a Tolerance, but not to themselves, they are tied to a Feature Control Frame and that perfect number can fluctuate with the Tolerance given, even when you call out a position, Those hard numbers are given and results usually differ, but if they differ to much away from that Basic number, and fall out of the Tolerance in your FCF then well you might have wondered a little to far from your basic number. So I would argue they do have a tolerance, just not to themselves, you can't just say +/-.005 or anything like that. Also Basic Numbers are not necessary to record, But If you are scanning it's best practice to make sure the CAD model Matches Your BASIC numbers, Don't always assume your Engineer did it correctly.
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