[Jo...] Posted October 27, 2025 Share Posted October 27, 2025 Posting in General for more traffic. (Original post in the curve section) Hey all, I am looking for some input on general 2d curve evaluation settings. I know this may be generic, but I figured I would put out a post. For some background. I have came across a few instances in my company where the same feature in different programs are being filtered differently. the examples below show a 2d curve evaluated with spline with 50 upr and a second instance where it is evaluated with Gauss with Lc 2.6. Appreciate the help! Link to comment https://qualityforum.zeiss.com/topic/24885-rules-of-thumb-for-2d-curve-evaluations/ Share on other sites More sharing options...
[Ma...] Posted October 27, 2025 Share Posted October 27, 2025 I would say: UPR for a turned feature - rest would be Lc But a programmer should be responsible for selecting correct filter. Link to comment https://qualityforum.zeiss.com/topic/24885-rules-of-thumb-for-2d-curve-evaluations/#findComment-140923 Share on other sites More sharing options...
[Jo...] Posted October 27, 2025 Author Share Posted October 27, 2025 I just opened the program to verify this again, and I think this could be a bug, actually. When I open the pencil to attempt to change this, I actually see it as being set to Lc already and with no option to change to UPR. 1 Link to comment https://qualityforum.zeiss.com/topic/24885-rules-of-thumb-for-2d-curve-evaluations/#findComment-140925 Share on other sites More sharing options...
[Jo...] Posted October 29, 2025 Author Share Posted October 29, 2025 bump. Does anyone still have any information regarding measurement settings on 2d curves? TIA Link to comment https://qualityforum.zeiss.com/topic/24885-rules-of-thumb-for-2d-curve-evaluations/#findComment-141027 Share on other sites More sharing options...
[Ri...] Posted October 29, 2025 Share Posted October 29, 2025 The biggest thing is a minimum of 3x actual to nominal points, though I think starting in 2023 it will automatically set it to do that. Link to comment https://qualityforum.zeiss.com/topic/24885-rules-of-thumb-for-2d-curve-evaluations/#findComment-141073 Share on other sites More sharing options...
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