[Cl...] Posted October 30, 2018 Share Posted October 30, 2018 I'm checking runout on a (.373" ID) cylinder back to Datum -B- (OD) cylinder. This part was turned on a Citizen M20. Do I need to be concerned with undulations per revolution as part of my evaluation? Link to comment Share on other sites More sharing options...
[Da...] Posted October 30, 2018 Share Posted October 30, 2018 I would say ,Yes. Depending on tolerance , you really should use filters, OLE and Prefilters if you are scanning the part. IMHO. Link to comment Share on other sites More sharing options...
[Cl...] Posted October 30, 2018 Author Share Posted October 30, 2018 Yes, applying filters. I am scanning the feature too. What about the upr setting? Link to comment Share on other sites More sharing options...
[An...] Posted October 30, 2018 Share Posted October 30, 2018 Factor for Outlier remains at value 3, Include Adjacent Points is set to value 5. No. Of iterations remains at the value 1. Undulation per Revolution from 10 to 5000. With ok steady! In the settings for filters you have to set the "Undulations Per Revolution" to the correct value, this depends on the diameter of the cylinder. < 8mm =15upr 8- 25mm =50upr 26 - 80mm =150upr 81 - 250mm =500upr >250mm = 5000upr Link to comment Share on other sites More sharing options...
[Cl...] Posted October 31, 2018 Author Share Posted October 31, 2018 Thanks all. I know about the upr values per diameter, but does that always get applied? Does it matter how the hole is machined? Does it matter if it is drilled/interpolation/bored/milled, etc.? doesn't the upr refer to the undulation of the tool? Link to comment Share on other sites More sharing options...
[To...] Posted October 31, 2018 Share Posted October 31, 2018 If they're on, they get applied. Do they change the result? It depends. Different machining processes are liable to produce more outliers than others, better form than others, etc. Since Runout includes form in the results, I would think using established settings would help, especially on features with high form error. Link to comment Share on other sites More sharing options...
[An...] Posted October 31, 2018 Share Posted October 31, 2018 I always use filters and outliers for scanning. In plastic production it is almost obligatory! Link to comment Share on other sites More sharing options...
[Cl...] Posted October 31, 2018 Author Share Posted October 31, 2018 Let me re-phrase the question from; "but does that always get applied?" to "When should this be applied" is what I meant. Link to comment Share on other sites More sharing options...
[An...] Posted October 31, 2018 Share Posted October 31, 2018 Zeiss specifies that filters and outliers should always be used for scanning! It is not a "must", but rather a "should". Link to comment Share on other sites More sharing options...
[To...] Posted October 31, 2018 Share Posted October 31, 2018 My opinion is that for characteristics with moderate to loose tolerances, it may not matter so much but for critical dimensions I would always use them. Link to comment Share on other sites More sharing options...
[An...] Posted October 31, 2018 Share Posted October 31, 2018 With tolerances + / - 0,2mm it is not so serious, always depending on the diameter! With me it is already habit, that I always use them! Link to comment Share on other sites More sharing options...
[Da...] Posted November 2, 2018 Share Posted November 2, 2018 Filters and OLE ? I put that S**T on everything !! (that I scan) 🤣 🤣 🤣 Link to comment Share on other sites More sharing options...
[Th...] Posted November 2, 2018 Share Posted November 2, 2018 Please sign in to view this quote. Zeiss's Red Hot Evaluation Modifiers? Link to comment Share on other sites More sharing options...
[Cl...] Posted November 2, 2018 Author Share Posted November 2, 2018 Like ketchup! "I put that S**T on everything !!" Link to comment Share on other sites More sharing options...
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