Qualifying issues since zeiss annual calibration

[[Jo...]]

Hey everyone, I've exhausted myself the last week trying to figure out what's going on with my probe qualifications.

2 months ago we had a "new" zeiss tech come to do our calibration.

After he finished up, he did the master probe and said it was ready to qualify the stylus systems.

So I just loaded my program and let it go thru all my systems.

Well a couple weeks ago I decided I needed to qualify a new probe and I went and grabbed the reference sphere and thought it looked off. Took a better look and zeiss tech had turned my sphere 90 degrees. It's the old style that has a mag base on the plate. So I turned it back and found the sphere.

I start qualifying the systems and they are way out. And i have some tight tolerance positions and cylindricity dimensions that arent checking good.

I've re qualified everything over and over and still cant make better.

Sorry for the long rant. Anybody have any insight to what might be wrong?

[[Ma...]]

I would start by making sure that your reference sphere geometry matches your actual reference sphere. After that be sure that your master probe is also qualifying correctly. Lastly make sure everything is snugged tight including your reference sphere, masterprobe, and stylus. What sensor and machine are you having trouble with?

[[Jo...]]

Contura G2 with a vast xt head. I'm finally at a point I can try to re qualify everything now.

[[Jo...]]

Double checked everything. Nothing I can tell is any different. Still coming up with a lot of deviations. I might have to break down and contact zeiss.

[[Ow...]]

When you say "way out" how much is that?
Make sure the reference sphere is tightly connected to the stem, they're just glued on and can come loose to where you can barely rotate it but enough to throw calibration out.
Crazier things have happened but, If you're working inch, make sure they didn't change it to report in MM, four places in MM really not that big of a deal.