[To...] Posted March 21, 2025 Share Posted March 21, 2025 (edited) Datum A is face and datum B is 2 cylinders. There are several profiles on the top of the part to A and B with MMB. Thought I could create a parallel cylinder but it is not available as secondary datum using Beta GD&T. Any thoughts? Edited March 21, 2025 Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/ Share on other sites More sharing options...
[Da...] Posted March 21, 2025 Share Posted March 21, 2025 Can you create a symmetry plane between the cylinders and perpendicular to A and use that? Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/#findComment-128829 Share on other sites More sharing options...
[To...] Posted March 21, 2025 Author Share Posted March 21, 2025 Please sign in to view this quote. Unfortunately, this won't help with regards to the MMB. Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/#findComment-128831 Share on other sites More sharing options...
[Pa...] Posted March 21, 2025 Share Posted March 21, 2025 With Beta GD&T you can check the option "Common datum" in element selection and there directly select both individual cylinders. The construction of a parallel cylinder is no longer needed here. Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/#findComment-128835 Share on other sites More sharing options...
[To...] Posted March 21, 2025 Author Share Posted March 21, 2025 Please sign in to view this quote. You are the man... thank yo. Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/#findComment-128837 Share on other sites More sharing options...
[Ju...] Posted March 21, 2025 Share Posted March 21, 2025 Tom was assisting me with this issue, so thanks for the help. I had a follow up question, if you had to do unequal distribution of a profile using the above datums how would you do that? When using the GD&T Beta engine that drop down menu disappears. Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/#findComment-128841 Share on other sites More sharing options...
[Pa...] Posted March 24, 2025 Share Posted March 24, 2025 I think I saw a mention in some intro video from Zeiss about Calypso 2024 that this unequal distribution doesn't exist yet in Beta GD&T Engine. Link to comment https://qualityforum.zeiss.com/topic/22845-datum-b-as-2-cylinders/#findComment-128877 Share on other sites More sharing options...
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