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Gotta say never, never, never to that one......except as a reference dim. All dims for a part/assembly must be on the orthographic views.
(I think the best way to look at it is the more you spread your dims around a drawing, the more likely it is that they will get confused/forgotten/ignored)
No. For simple parts you could use these, but for slightly complicated parts it can be confusing (just my opinion).
Hmm I just remember, I used 3d dimensioning once for a pneumatic piping way. But just some general dimensions on a 3d view to give them an idea of what the piping should look. Because I didn't care so much about the length of the piping.
I'd like to but don't except for 'special' purposes. As of WF2 creating,
manipulating, managing 3d annotations just ain't mature enough. I do hope
ISO 16792 / Y14.41 has enough impetus to drive development.
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