[Ma...] Posted March 9, 2021 Share Posted March 9, 2021 So we are trying to check the profile of the spiral on this part. Our thinking is trying to use surface measurement with single points as it pulls a profile for each individual point. Is this valid? We don't have curve or freeform and my company is trying to avoid spending the money 😃 [img]https://www.imgur.com/a/7SGLR8Z[/img] https://www.imgur.com/a/7SGLR8Z If you can't see the picture I guess right click and open in a new window....for some reason I guess I don't know how to put a picture in my post. Link to comment Share on other sites More sharing options...
[Ri...] Posted March 9, 2021 Share Posted March 9, 2021 If that's all you have, that's all you have. You will just need to take enough single points to get enough coverage to satisfy everyone. 3d Curve or FreeForm is the best way to go though. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 9, 2021 Author Share Posted March 9, 2021 That's what I said. So once I take all the space points, should I be calling out a profile to each individual, or can I gather them all together and try to get it as a whole? Its a .15mm profile. Link to comment Share on other sites More sharing options...
[Ri...] Posted March 9, 2021 Share Posted March 9, 2021 You will only be able to report individual Profiles. Then you can great a max characteristic to show the maximum deviation if you'd like. Link to comment Share on other sites More sharing options...
[Ma...] Posted March 9, 2021 Author Share Posted March 9, 2021 Okay, I'll give it a shot. Thank you again, much appreciated! Link to comment Share on other sites More sharing options...
[Mi...] Posted March 9, 2021 Share Posted March 9, 2021 Please sign in to view this quote. In this case would it be good to make a geometry best fit alignment, then report the profiles with respect to that? That way it's sort of evaluating them simultaneously, like a free form surface. Link to comment Share on other sites More sharing options...
[Ch...] Posted March 9, 2021 Share Posted March 9, 2021 I've had a similar one a while back. Profile of an odd- ball ACME threads, both sides of flanks on P.D. with no datum reference frame. Oh, and the thread start is not indexed to anything .... 🤣 Does yours have a DRF or to itself? Link to comment Share on other sites More sharing options...
[Ma...] Posted March 9, 2021 Author Share Posted March 9, 2021 No I actually am lucky enough to have DRF and it's indexed. The start point is actually 2 spheres that are combined as well. It's certainly a fun one I can tell you that much. Especially with the tight tolerances on it (up to .00005), no plus and minus, just .00005") 🤣 Link to comment Share on other sites More sharing options...
[Ri...] Posted March 9, 2021 Share Posted March 9, 2021 Please sign in to view this quote. I don't think that would work for you. The geometry best fit is typically used as an alignment. Think of a Free-Form alignment. Link to comment Share on other sites More sharing options...
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