I'm currently trying to measure a part with a profile tolerance of .006|A|B|C, if my Y deviation is -.008 and my Z deviation is .0017 how is PCDMIS calculating the profile to be .0056? I'm evaluating the profile scan hits and know about turning min/max on but unfortunately the original programmer didn't have that turned on, and the operator didn't save the run data so all I have to go off of is the excel report. We use 2019 software.
Sorry all, I know profile has been beaten to death, but I am having a tough time finding an explanation for this. If anyone could explain it to me like I'm a 5-year-old that would be greatly appreciated!
jozey This document was created to explain the differences between the old ASME profile calculation which looked at both the Max and Min and the new, single value method which reports the greatest deviation x2. Since you're using PC-DMIS 2019, your values are based on the old calculation (ASME 1994 method).
How PC-DMIS calculates that has changed numerous times, over different revisions, service packs, etc.
Report the 2x the absolute value of your worst-case deviation, while in appropriate coordinate frame, regardless any value PC-DMIS wants to calculate, period.
