[Cl...] Posted May 21, 2020 Share Posted May 21, 2020 I have a datum surface that is a torus, any ideas on how to get creative here? The very end of the part (end of threads). I'm thing I might have to use a datum feature simulator? Link to comment https://qualityforum.zeiss.com/topic/15720-torus-datum/ Share on other sites More sharing options...
[Ke...] Posted May 21, 2020 Share Posted May 21, 2020 How is the torus being used as a datum? (using the central diameter, or the outer surface?) I use torus' all the time, to locate/control measurements, but they are precision ground, and I typically have 80degrees of curvature available. Link to comment https://qualityforum.zeiss.com/topic/15720-torus-datum/#findComment-85606 Share on other sites More sharing options...
[Cl...] Posted May 21, 2020 Author Share Posted May 21, 2020 The outer surface. Link to comment https://qualityforum.zeiss.com/topic/15720-torus-datum/#findComment-85608 Share on other sites More sharing options...
[Ke...] Posted May 21, 2020 Share Posted May 21, 2020 ...That's a sticky wicket, even with a full feature... If you're not measuring many parts (I deal with a lot of prototypes & benchmarking): Possibly a plane with a few tight circle paths, and use Outer Tangential. But if you are running for production, DFS is probably the way to go. Link to comment https://qualityforum.zeiss.com/topic/15720-torus-datum/#findComment-85610 Share on other sites More sharing options...
[Cl...] Posted May 21, 2020 Author Share Posted May 21, 2020 The print for this part also has a surface profile callout with MMC bonus for the surface. Link to comment https://qualityforum.zeiss.com/topic/15720-torus-datum/#findComment-85612 Share on other sites More sharing options...
[Ke...] Posted May 21, 2020 Share Posted May 21, 2020 🤣 🤣 We don't have time to train all of the engineers. Link to comment https://qualityforum.zeiss.com/topic/15720-torus-datum/#findComment-85614 Share on other sites More sharing options...
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