[Cl...] Posted January 10, 2025 Share Posted January 10, 2025 I've been struggling with a program passing a simple type-1 GRR (1 part on/off the fixture 10x). The surface profile would not get below 20%. The initial base alignment used a symmetry plane for its clocking. After several attempts and no improvement. I changed the clocking to a 3d line form two circles. Surface profile now <10%. I had no idea such a minor change could have such a dramatic result. Link to comment https://qualityforum.zeiss.com/topic/21958-subtle-change/ Share on other sites More sharing options...
[DW...] Posted January 10, 2025 Share Posted January 10, 2025 Just for giggles if you have time, instead of a symmetry plane does changing it to just symmetry yield the same results? Link to comment https://qualityforum.zeiss.com/topic/21958-subtle-change/#findComment-123980 Share on other sites More sharing options...
[Cl...] Posted January 10, 2025 Author Share Posted January 10, 2025 My mistake. It was a symmetry. Link to comment https://qualityforum.zeiss.com/topic/21958-subtle-change/#findComment-124004 Share on other sites More sharing options...
[DW...] Posted January 10, 2025 Share Posted January 10, 2025 Please sign in to view this quote. I have had the same issue before with not having a robust clocking feature. Took me a while to learn how important that is when getting repeatable accurate measurements. Link to comment https://qualityforum.zeiss.com/topic/21958-subtle-change/#findComment-124008 Share on other sites More sharing options...
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