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Symmetry Around a Triangular Part

Symmetry Around a Triangular Part

Symmetry Around a Triangular Part

(OP)
Hey guys,

Let me preface this with I don't have much experience with in depth GD&T I haven't had instruction in it in years and that was not very in depth.

I have a part that is an equilateral triangle with some other features added. I want to avoid dimensioning all three sides of the triangle if I can, because the drawing gets really cluttered really fast and many features are the same distances about the center hole rotated +-60deg. Because its a triangle and symmetric about 60deg increments I am not sure how I am supposed to go about dimensioning the part such that its clear the other arms of the triangle are the same dimensions

I looked online for information about GD&T on symmetric things, but I couldn't find anything close enough to what I wanted.

Can I just say the dimensions are typical as I did in the example simplified drawing I attached?

Any advice or resources are appreciated.

Thanks.

http://i.imgur.com/EmxY9F2.jpg

RE: Symmetry Around a Triangular Part

(OP)
Thanks,

That seems like what I was looking for.

RE: Symmetry Around a Triangular Part

As an aside, use of TYP is not condoned by Y14.5 or Y14.100. It's much more clear to use a multiplier e.g. 4X. I think that if it MUST be used then only when the number of occurrences is hard to count like with fillet radii in a complex molded or cast part.

Tunalover

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