Anyone running verisurf on the cmm or equator? Pros cons?
My company is not loving or believe pcdmis is giving correct data. I hear at least 3 times a day math is math and pcdmis is not doing the math correctly.
browningdmis I hear this all the time and it gets frustrating really fast. First thing I do is go to the CMM and clean everything. Scales, rubies, probe modules, CMM head, the granite and the mesuring part. Then I calibrate the probes and make sure the standard deviation is as low as possible. Then I look at the program and make sure all my nominlas and vectors are correct and hadn't drifted. Then I re run the same parts and see if the measurements changed. If they changed it due to dirty CMM/probes/needed probe calibration kind of issues. IF they say the same more or less, I say all the time what
KatmandudaMeow said "the numbers don't lie".
I recently had a scenario where this machine and operator were running parts and hadn't scrapped anything in over 3 weeks. Running 1 shift and he's training another machinist. The split up and go 2 shift with the second guy running on his own at night. Night guy runs passing parts all night. Day shift guy comes in the next day and looks at the night guys last part to make his adjustments. Day shift guy runs is first part and critical depth is out of tolerance by 0.005". He told me the CMM is wrong because the last part run was close to nominal.
I did what I mentioned in my first paragraph and the part measured the same. Numbers don't lie. He said it was the CMM. I then take the same part to another CMM which is a duplicate CMM, same head, model, etc. and guess what. The deviation was different like 0.0002" so yeah, the part was way out of tolerance. BOOM. Either he didn't index his inserts or the CNC cooled off to much or CNC drift or whatever. It wasn't the CMM.
