[Mo...] Posted February 17, 2022 Share Posted February 17, 2022 New to me parallelism callout on a print. // 0.040/100 crossing to A // 0.040/100 inclination to A The callout is placed on pinion id bores, Datum A is an outside diameter on an output shaft. Any help on how to check this in Calypso would be appreciated. Thanks Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/ Share on other sites More sharing options...
[SH...] Posted February 17, 2022 Share Posted February 17, 2022 If you don't mind..any drawing or hand sketch?? Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41462 Share on other sites More sharing options...
[Mo...] Posted February 17, 2022 Author Share Posted February 17, 2022 Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41464 Share on other sites More sharing options...
[Er...] Posted February 17, 2022 Share Posted February 17, 2022 Is this drawing to an ISO standard? ASME? Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41466 Share on other sites More sharing options...
[Ow...] Posted February 17, 2022 Share Posted February 17, 2022 ????. I'm not sure about this one but, I'll offer my 2 cents worth (with inflation it's probably 3 cents 🙄 ).. Essentially it's parallelism of 0.040 allowed per every 100mm of length and perpendicularity but you would have to have a secondary datum to use in the parallelism characteristic if choosing "cartesian" in the shape of zone drop-down menu. I've measured older engine connecting rods that have prints like this (without the distance ratio) where they use parallelism to control the bend and twist of the rod instead of perpendicularity, profile or true postion. You would probably have to use constructions to gauge the amount of error for every 100mm because the parallelism characteristics doesn't have an option like the flatness REF characteristic to evaluate per area/distance. Not sure it will help but, see illustration below. In this example the crank bearing face is used as the secondary datum by choosing parallel-to or perpendicular-to to gauge bend vs twist. Kapeesh? ❓ Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41468 Share on other sites More sharing options...
[Mo...] Posted February 18, 2022 Author Share Posted February 18, 2022 Please sign in to view this quote. ISO Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41470 Share on other sites More sharing options...
[Mo...] Posted February 18, 2022 Author Share Posted February 18, 2022 Please sign in to view this quote. Thank you, this is pretty similar to what I figured out. I have never used parallelism with cartesian tolerance zone before, so had to play around it a little. Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41472 Share on other sites More sharing options...
[Mi...] Posted November 26, 2022 Share Posted November 26, 2022 Please sign in to view this quote. Could you share your solution? I have the same callout on a part and I'm struggling to figure out how to get Calypso do to it. Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41474 Share on other sites More sharing options...
[Ma...] Posted November 26, 2022 Share Posted November 26, 2022 Please sign in to view this quote. Just use it as Owen shared - using "Perpendicular" and "Parallel to" you are switching usage - here it is bend and twist. And don't forget to use P for 100mm of length. Link to comment https://qualityforum.zeiss.com/topic/9086-parallelism-question/#findComment-41476 Share on other sites More sharing options...
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