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GD&T: Angularity with a modifier?


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 Angularity is not a tolerance on the angle. It is simply Perpendicularity, but instead of applied 90°, it can be any angle. 

 

They most likely want Position as this appears to be incorrectly toleranced. 

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I'm pushing for a Profile of the feature.

My understanding of angularity tolerance is two parallel planes to constrain the feature, similar to profile but less control.

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ISO will allow material modifiers on features of size. But I assume you are working with ASME, where I'm not sure it's the same.

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Then it's wrong. On drawing there should be basic dimension of angle and in this callout should be number of tolerance width same like for flatness or parallelism.

You can not use MMC value ( typicaly of some distance ) and add that to an angle.

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Poor drawing.  I see so much more of this from our customers than we used to.  It's like suddenly design engineers around the world are all under 30, and all guessing.

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