[Ma...] Posted June 9, 2021 Share Posted June 9, 2021 Please sign in to view this quote. A cone can restrict 5 degrees of freedom. I have seen some drawings with a note that the cone is not to control the axial origin and to use another surface for this purpose. Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63700 Share on other sites More sharing options...
[An...] Posted June 10, 2021 Share Posted June 10, 2021 _ Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63702 Share on other sites More sharing options...
[Me...] Posted June 10, 2021 Share Posted June 10, 2021 Please sign in to view this quote. Thanks Andreas. I just see an exaggerated deviation of a cone that doesn't represent most cases of this type of situation. If design was correct, there would be controls in regard to orientation to the -A- cone, like perpendicularity of a lower precedented face. If I saw a part like what you've graciously drawn up for us and there weren't any controls for features back to -A-, I would be sending that back for drawing review or revision change. Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63704 Share on other sites More sharing options...
[Da...] Posted June 17, 2021 Share Posted June 17, 2021 Please sign in to view this quote. Andreas, You can't use a cone as a datum simulator for a cylinder. The simulator must be the "true geometric counterpart" of the datum feature. In this case, it must be a cylinder. What questions do you have about Y14.5.1? For obvious copyright reasons, I can't just post the document. Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63706 Share on other sites More sharing options...
[An...] Posted June 17, 2021 Share Posted June 17, 2021 _ Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63708 Share on other sites More sharing options...
[Da...] Posted June 17, 2021 Share Posted June 17, 2021 This looks like a cone, acting as a datum feature simulator. If I misinterpreted your image, it was a mistake made in good faith. I am happy to post snips of the standard, but I don't know what snips to post unless you have specific questions Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63710 Share on other sites More sharing options...
[An...] Posted June 17, 2021 Share Posted June 17, 2021 _ Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63712 Share on other sites More sharing options...
[To...] Posted June 17, 2021 Author Share Posted June 17, 2021 Beginning of thread.... Please sign in to view this quote. Link to comment https://qualityforum.zeiss.com/topic/12700-drf/page/2/#findComment-63714 Share on other sites More sharing options...
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