ASME Y14.5 - 2018 Dynamic Profile Inspection 4

[beakerj]

To all my fellow GD&T enthusiasts out there... I'm curious, how are you inspecting dynamic profile from the ASME Y14.5-2018 standard if you are using it?

Example: How would you inspect, practically Fig 11-20, in the new standard? Assuming this is a CMM routine?

 

[SeasonLee]

To echo what you mentioned:

Any pair of features assembled together for which it is more important to control uniformity of the gap between them after assembly

Also, looking forward to a FEA where the uniformity of the gap is more important than the absolute size of the gap.

This is the application example on that book page 11-34. Highly recommend to own a reference book of your own, there are few more dynamic profile examples on that chapter.

Season

 

[3DDave]

I've never seen a case where it was desirable to allow a large ugly gap as long as it was consistent, particularly in a consumer product. One huge complaint for car reviews is large gaps between panels.

I don't mean, some example made up by someone looking to justify the additional constraint - I really mean, someone who for the last 4 decades has had to provide a work-around to the lack of this constraint and show what that workaround was.

Much like a logo there's such tight control over the profile for consumer fit that there's no need to add a further constraint on it.