Good afternoon everyone, I am currently trying to measure features on a tubed part. I have a 5 way that i am using but only using two tips. I thought my knuckle was working for a little bit and I use my master to calibrate both directions and then switch to my probe build and calibrate all tip 1 angles first then change to Y+ direction for the knuckle calibration and i thought the StdDev looked ok but everytime i try to measure the features at the bottom, it is giving me Very High Results. I measured the same part a month ago and all the features were in spec underneath and now i am measuring the same part and all the features say they are way out. I am totally confused by this and I've exhausted all options. Can someone please help? Attached are images of my probe build and setup.
If your calibration method has always produced good results in the past, but is no longer, one or more of your components is degrading.
1) clean, and relocate qualification sphere.
2) clean contact area/kinematic mounts of stylus holder
3) lower matrix qualification, at least you'll know if the probe head is hopeless
4) temporarily bypass the extension. Remove it (temporarily), if the similar (minus extension) stylus system qualifies without problems, there you go.
5) after that, just replace one component at a time, cheapest piece first
6) if none of that works, it may be time for a new probe head. Even though you don't appear to exceed weight limits, that would be all that's left...
