Holes on Angled Surfaces

[PRuggiero]

Guys,

I'm trying to think of the best way to dimension from holes which sit on an angled surface to my A|B|C datums. I've attached my first shot, which I think is correct up to the part where I label the edge of my angles surface 0,0. How can I cleanly ordinate dimension the holes?


Thanks,
Pete

 

[MechNorth]

Pmarc, definitely not a trivial way to go, I agree.
Pruggerio, it's a significant extension of principles. Basically, you would add a "feature designation" such as "FTR K" to each, then add another separate control to each with a more restrictive tolerance. The greatest difficulty is the different control types, position and profile; that complicates things significantly. Though I hate doing it, I would consider using a profile control for the size of the cutout with a composite position @MMC and BOUNDARY notation ('94; "boundary" eliminated in '09) and a second. Haven't done it this way with two dissimilar features, so it would take a lot more time than this forum.

Jim Sykes, P.Eng, GDTP-S
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