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I came across this callout on a drawing I was asked to review. I'm pretty sure the position tolerance on the two opposed edges is not a valid callout and I think I understand how to explain why but wanted to confirm my thinking with some of the experts here. Ignoring the fact that the edges...

What is the appropriate way to specify a chamfer that follows a complex path (i.e. - it is on an edge that is not simply straight or circular, but a combination of lines & arcs). Do I just specify the dimensions in a single view and rely on the visual representation to show that it follows the...

I understand how surface profile can be used without a datum to control form and size. At my company many engineers use surface profile extensively to control form, size, and location. The idea is based on invoking the rule of simultaneity - since all of the surface profile callouts have the...

Like I said before, using surface profile without datums is a whole different topic of conversation - with lots of opinions on both sides of that debate. [smile] My particular question had to do with attaching the surface profile FCF to the basic dimension as shown in the examples above...

drawoh, I didn't delete the datum references - there are none (that's a whole different topic of conversation). These examples are not from my drawing. I just pulled them from one of the drawings I have seen recently to illustrate how I am seeing surface profile callouts attached to dimensions...

Just to clarify, here are a couple of examples of what I am seeing.

drawoh - It's not the application of profile to a feature of size that is the concern, but the placement of the FCF. I am seeing the FCF attached to the basic dimension like a position tolerance FCF. When you say that "I apply the profile tolerance to my diameter specification", do you mean that...

At my company we use a lot of surface profile. I will frequently see drawings where the surface profile FCF is attached to the dimension of a feature of size(a width or a diameter). The intent is to control the surfaces of that feature. If it is a width, both surfaces would have the profile...