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Composite Tolerance

Lukas
​

I am having trouble understanding composite tolerance, especially when it comes to a bolt hole pattern like this. I am wondering how you would dimension these true positions. Here's my idea using legacy dimensioning:

Level and translate to A, rotate to B, and report the position of 1 hole (any hole?...lets say the 12'O'Clock hole) and give it a .001 tolerance. Then, would I stay leveled to A&B, translate to the hole that I just reported on (12'O'Clock hole), and report the positions of the rest of the holes with a .0005 tolerance?​

Thanks so much...I prefer to use legacy...
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  • You need a best fit alignment for the 2nd layer. You would never choose any " 1 " hole and use it as a 0.0 point. You are looking for the pattern and not related to any 1 " random " hole you call 0.0.
    Look at pages 224/225/232 in the 2018 Y14.5 as it shows similar examples of your call out.
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  • You need a best fit alignment for the 2nd layer. You would never choose any " 1 " hole and use it as a 0.0 point. You are looking for the pattern and not related to any 1 " random " hole you call 0.0.
    Look at pages 224/225/232 in the 2018 Y14.5 as it shows similar examples of your call out.
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