[To...] Posted February 3, 2021 Share Posted February 3, 2021 I think I have a good application for using a stepped cylinder but not sure I'm using it correctly. I have 2 inline cylinders and have recalled the points into a stepped cylinder. So far, so good, right? Next, I created a position of the stepped cylinder to A & B for the upper tier. For the lower tier, I created another position but used the stepped cylinder for the feature and the primary datum feature. Seems ok to me. Any thoughts?Screenshot 2021-02-03 103806.jpg Link to comment Share on other sites More sharing options...
[Ri...] Posted February 3, 2021 Share Posted February 3, 2021 I've seen this type of callout before, and the interpretation that I was given from that particular customer was that it was one whole cylinder, not two individual ones. I think the Step Cylinder would be the wrong approach if this is true for this one. Link to comment Share on other sites More sharing options...
[Me...] Posted February 3, 2021 Share Posted February 3, 2021 I have a bonus question to add to this inquiry... Say you are scanning a stepped cylinder that is significantly different in size and enough have to have separate evaluation settings, when creating the step cylinder, which bore takes precedence as far as what filter & evaluation to use? Link to comment Share on other sites More sharing options...
[Cl...] Posted February 3, 2021 Share Posted February 3, 2021 Please sign in to view this quote. I use step cylinders a lot, and never thought about that. Good question Shawn. Link to comment Share on other sites More sharing options...
[Jo...] Posted February 3, 2021 Share Posted February 3, 2021 Totally an opinion, but the designated tolerance "THRU" especially with a modifier would steer me to construct a cylinder thru, not in halves. Link to comment Share on other sites More sharing options...
[Ri...] Posted February 3, 2021 Share Posted February 3, 2021 In my opinion, filtering does not have the same amount of impact on the results as Outlier Elimination does. This is especially true if using the LSQ algorithm. In the case of the OTE/ITE, sure the filtering can have some impact - I still think it is minimal. Clarification - if we are talking form tolerances, then yes filtering has a major impact. Link to comment Share on other sites More sharing options...
[Me...] Posted February 3, 2021 Share Posted February 3, 2021 Please sign in to view this quote. I apologize for hijacking your post Tom, been meaning to ask my question for quite some time now and this post reminded me. Link to comment Share on other sites More sharing options...
[To...] Posted February 3, 2021 Author Share Posted February 3, 2021 Please sign in to view this quote. Even though the cylinders are different sizes? Could you be more specific on the set up of each tier of the position? Link to comment Share on other sites More sharing options...
[Ri...] Posted February 3, 2021 Share Posted February 3, 2021 Please sign in to view this quote. That's an oversight on my end. I just snapped to the two coaxial features part. In that case, Step Cylinder is the correct approach. As for your alignments, I'm not certain I understand the purpose of the lower tier, but I think you are on the correct path. Link to comment Share on other sites More sharing options...
[Jo...] Posted February 3, 2021 Share Posted February 3, 2021 Please sign in to view this quote. Sorry Tom, I totally missed the second tolerance callout. Are the nominal diameters different, or only the tolerances ? Link to comment Share on other sites More sharing options...
[To...] Posted February 3, 2021 Author Share Posted February 3, 2021 Please sign in to view this quote. Sorry about that. Cylinders are different sizes, too. Link to comment Share on other sites More sharing options...
[To...] Posted February 3, 2021 Author Share Posted February 3, 2021 Please sign in to view this quote. We're still dealing with "that" part with 1994 classification. Link to comment Share on other sites More sharing options...
[Ri...] Posted February 3, 2021 Share Posted February 3, 2021 Here you go then. Link to comment Share on other sites More sharing options...
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