[Da...] Posted June 12, 2019 Share Posted June 12, 2019 I am having a problem with using Recall Feature Points. When I recall several features (eg planes) into one larger feature, the nominals are pretty much always offset. See the attached picture: Has anyone ever seen this before? It happens with drawing from different customers, and doesn't seem to change behavior if I use automatic healing or not, or what settings I do use. I also sometimes see polyline points, surface points etc, offset from the cad surfaces. Again, this happens regardless of healing settings. I have updated drivers, done clean driver installs, and I am running 6.6.1601 on an HP Z4 provided by Zeiss. Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/ Share on other sites More sharing options...
[Da...] Posted June 12, 2019 Share Posted June 12, 2019 Any chance its off by 1/2 your probe diameter? Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103682 Share on other sites More sharing options...
[Da...] Posted June 12, 2019 Share Posted June 12, 2019 David, this thread would be relevant -> viewtopic.php?f=13&t=1180 Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103684 Share on other sites More sharing options...
[Da...] Posted June 12, 2019 Author Share Posted June 12, 2019 Please sign in to view this quote. Please sign in to view this quote. Oh wow, that is a bizarre behavior. That might be my problem. I didn't realize that you had to uncheck the box before you selected the features to recall. I guess that is why the checkbox didn't seem to do much... But if I uncheck the box before I select any features, I end up with no nominal values. Straight Zeros all the way down. Any way around that? Please sign in to view this quote. I don't think so. It doesn't seem to be off by any round number at all. The part I am working on now it is off by 0.9398mm/0.037", sometimes it is less than that. I tried changing probes, and crating new features with that probe, and no change I don't see any change in the offset. Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103686 Share on other sites More sharing options...
[Ri...] Posted June 12, 2019 Share Posted June 12, 2019 The method I suggest is to do it before you have actual data in the features that you are recalling. It should require you to have a strategy defined. It should then be correct, or pretty close. Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103688 Share on other sites More sharing options...
[Da...] Posted June 12, 2019 Share Posted June 12, 2019 Please sign in to view this quote. Do the recall feature points into the extracted plane edit: I mean into newly extracted plane. So you would recall planes 1 and 2 into plane 3 for example. Added screenshots2pl-1.PNG2pl-2.PNG2pl-3.PNG Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103690 Share on other sites More sharing options...
[Da...] Posted June 12, 2019 Share Posted June 12, 2019 It might also be sane to correct the last plane, so that "covers" both previous, I'm not sure. Some else has to confirmex1.PNGex3.PNG Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103692 Share on other sites More sharing options...
[Ri...] Posted June 12, 2019 Share Posted June 12, 2019 Interesting - it usually does it for you. Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103694 Share on other sites More sharing options...
[To...] Posted June 13, 2019 Share Posted June 13, 2019 Please sign in to view this quote. If this plane becomes a Datum feature, then the size of the plane is somewhat irrelevant because the size of the plane is infinite. However, if you're evaluating this plane to a datum, i.e. perpendicularity, then it should be defined to its' nominal size. Link to comment https://qualityforum.zeiss.com/topic/18434-recall-feature-points-resulting-feature-offset/#findComment-103696 Share on other sites More sharing options...
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