[Pa...] Posted April 2, 2020 Share Posted April 2, 2020 Hey guys, newbie here. I'm trying to measure a plane from a cad model for flatness. I was given a part and cad model, along with a measured report from some other facility. The engineer wants me to measure and report the flatness of the plane, the same way the other lab did. The report shows the highlighted feature from the cad model, with evenly spaced lines covering all but the edges. The pattern on the plane looks similar to the tool path used when milling a pocket. I can't figure out how to make it scan like that. I've tried polyline and grid with no success. I could sure use some help. Link to comment Share on other sites More sharing options...
[SH...] Posted April 2, 2020 Share Posted April 2, 2020 Please sign in to view this quote. Any screen shot?? Link to comment Share on other sites More sharing options...
[Za...] Posted April 2, 2020 Share Posted April 2, 2020 Go to strategy and select grid. At the bottom of the Grid screen under segments select LINES. You can adjust under the PATH Link to comment Share on other sites More sharing options...
[Ke...] Posted April 2, 2020 Share Posted April 2, 2020 Please sign in to view this quote. Out of curiosity... Is there a reason why one would want to create a strategy that is "similar to the tool path"? And my own two cents: The flatness result should be within spec, regardless of the measurement strategy that is used. If there are significant differences in results, that is when measurement strategies should be compared. Also - don't forget to set your filters & outliers, in Evaluation settings. Link to comment Share on other sites More sharing options...
[Ma...] Posted April 2, 2020 Share Posted April 2, 2020 Please sign in to view this quote. Selecting a scan path that follows the tool path will effectively remove any systematic deviations caused by the tool, side tilt, concavity, etc. So, this strategy may be employed to help make the part look better than it really is. There may be other reasons, diagnostics, part functionality etc. one would want to exclude these deviations from the measurements. Link to comment Share on other sites More sharing options...
[Pa...] Posted April 2, 2020 Author Share Posted April 2, 2020 Please sign in to view this quote. No, I'll snap a picture of the report next week. Thanks Link to comment Share on other sites More sharing options...
[Pa...] Posted April 2, 2020 Author Share Posted April 2, 2020 Please sign in to view this quote. I don't know why they chose to do it that way specifically. The plane was scanned to report the flatness. There was fretting on the surface that was visible, and I'm assuming the engineer requested the whole surface be measured, with about .025 edge clearance. I was trying to describe what the graphic looked like in the picture, that was given to me. Link to comment Share on other sites More sharing options...
[Pa...] Posted April 2, 2020 Author Share Posted April 2, 2020 I did get the plane measured after fiddling with the grid. It just doesn't look like the grid in the picture. Link to comment Share on other sites More sharing options...
[Ke...] Posted April 3, 2020 Share Posted April 3, 2020 Please sign in to view this quote. Is the report that you were supplied a Calypso report, or some other? Can you show the comparison? Link to comment Share on other sites More sharing options...
[Pa...] Posted April 3, 2020 Author Share Posted April 3, 2020 Please sign in to view this quote. Yes, it's a Calypso report. I'll get a picture of it. Link to comment Share on other sites More sharing options...
[Jo...] Posted April 3, 2020 Share Posted April 3, 2020 Please sign in to view this quote. There isn't a flatness with a refinement/ composite FCF ? Example: .005 total but with .0005 per 1.0 ? That would require a grid space. I also have parts with a zone only for flatness. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in