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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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  • The Y14.5 example posted specifically says that the lower segment controls rotation only. The Y14.5 example also says that the upper segment controls both rotation and translation. The only significant difference between the y14.5 example and the original post is the tertiary datum. I'm not following why translation would be required.
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  • The Y14.5 example posted specifically says that the lower segment controls rotation only. The Y14.5 example also says that the upper segment controls both rotation and translation. The only significant difference between the y14.5 example and the original post is the tertiary datum. I'm not following why translation would be required.
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