[Ja...] Posted February 12, 2025 Share Posted February 12, 2025 Hello everyone, I have a quick question about a composite positional tolerance. I'm wondering about the second tier of this, where the callout is to only the A datum. On this part, the A datum is a freeform surface, which I have created a work plane in order to use this surface in my datum structures. My question is this: when I am setting up the best fit of bore pattern, do I check mark the boxes titled "Rotation" and "Translation"? I'm under the impression that I do for this particular datum structure, as the pattern is free to rotate and translate when only called to A. I have attached an image of the strategy and callout in question. Thank you in advance! 367 COMPOSITE TOLERANCE.docx Link to comment https://qualityforum.zeiss.com/topic/22418-composite-positional-tolerance/ Share on other sites More sharing options...
[Ma...] Posted February 12, 2025 Share Posted February 12, 2025 Can you show us what is datum A? I don't believe it's something complex because of usage A|B|C On other hand - when it's only A for TP you have to allow rotation and depending on datum A even translation. Not: you know you can post pictures instead of attachment right - even clipboard is enough? saved image file is not necessary Link to comment https://qualityforum.zeiss.com/topic/22418-composite-positional-tolerance/#findComment-126332 Share on other sites More sharing options...
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