Using MasterProbe for Inspection

[[Me...]]

Found a program from a few years ago that uses our masterprobe for some features. I think the old programmer just used it because of the probe size.

What are the cons for doing this?

Are there any benefits?

I already changed probes, I'm just curious.

[[Ri...]]

The MasterProbe is used as the Zero-Point for all of the other probes. If you are measuring parts with the MasterProbe, you can potentially wear it down, and now cause inaccuracies in it's qualification which would then bleed over to the rest of your stylus systems.

[[Na...]]

Ian,

Just some of the cons by using the MasterProbe is that any type of debris that could be found on the part could be transferred to the MasterProbe ruby. Just as well, the MasterProbe Ruby could start to wear much more than it normally would. This is obviously not only detrimental to the MasterProbe, but since all of the probe deviations are being calculated against the MasterProbe, the values generated for your other stylus systems would be affected. So the sigma values could become widely variant.

[[Me...]]

What Richard said to the nth degree. Instructors also advise this in training classes for that exact reason. Material can and also will build on any one of your probes leading to in-exact calibration results, the last thing you want is Material building up or wearing, on your Master Probe.