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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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  • While Basic dimensions don't have tolerance, it is usually worthwhile to report their value. The shop needs to know how to adjust their equipment to produce good parts. With position, there's a vast difference between a hole pattern where all the holes are out the same direction and distance and one where the holes are scattered. Profile has the same type of issue. Is the shape good but shifted or is the shape running all over the place.

    Technically you don't have to report the Basics, but practically you should.
  • in reply to kingsld1
    Thank you. Yes, we usually report the measured for Basic with no tolerance, just deviation. This all stemmed from how to report Profile. We had a feature that had ALL AROUND profile and what I did was take hit points all around, created a Feature Set with those points, then report Profile of that set. Does that sound like a correct way to report Profile of a line ALL AROUND.

    Thanks again,
    Greg
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  • in reply to kingsld1
    Thank you. Yes, we usually report the measured for Basic with no tolerance, just deviation. This all stemmed from how to report Profile. We had a feature that had ALL AROUND profile and what I did was take hit points all around, created a Feature Set with those points, then report Profile of that set. Does that sound like a correct way to report Profile of a line ALL AROUND.

    Thanks again,
    Greg
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