tp20 madness!

i had a program giving bad data (.005 oot) for a length characteristic on a production floor cmm. this was verified in the gage lab with an open setup.

i ran the program on the gage lab cmm and got good data (matched the open setup).

i swapped out the tp20 and tip on the production floor cmm, reran the same program and part, and got good data (matched the open setup and gage lab cmm).

i then ran the same program with the same part on the gage lab machine with the "bad" tp20 and tip and got good data.

its a 3x30 tip in 0,0 orientation. no other orientations seem to be offering contrary data.

thoughts?

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0 bfire85 10 months ago

Could be anything: Temperature, Humidity, Calibration status and results, Probe Body issues, Probe Head issues

When you swapped the probes, did you calibrate the tip first before running on either of the CMMs? Can you validate the measurement with another piece of equipment?

There is a lot of trial and error here that you will have to go through to understand the root cause. Good luck!
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0 bfire85 10 months ago

Could be anything: Temperature, Humidity, Calibration status and results, Probe Body issues, Probe Head issues

When you swapped the probes, did you calibrate the tip first before running on either of the CMMs? Can you validate the measurement with another piece of equipment?

There is a lot of trial and error here that you will have to go through to understand the root cause. Good luck!
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