Yearly calibration tech was just in and needed to use a "service" probe, a longer probe for extra reach in their calibrations.
Now we're having issues qualifying the probes after running in house calibration.
First time only the master was checking small, so we re-ran calibration.
Now all the probes are checking the Ø of the sphere .0002"-.0004" small.
We answered Yes to 1st probe, No to the rest for the has the sphere moved question.
We have reset to theoretical box checked.
STD Dev results are looking good.
Shouldn't answering yes to has the sphere moved and resetting theo's for the master probe override any old info?
We had this issue on both CMMS.
Test some of your probe tips with a Ring/Disc gage. If the measured sizes come back correct, then the calibration is handling your compensation correctly. If it is not, go back to Hexagon with your findings.
I've never paid much attention to the size reported for the sphere during calibration.
Additionally, you could use gage blocks to check the Z axis comp as well, then you will have considered each direction of compensation.
Didn't look at what size the probe was in calibration results.
This is in a qualifying program we run after calibration where we measure the sphere with all the probes and report location and sphere Ø.
Measured a ring gage and some gage blocks and found similar range of .0002-.0004" small. Z seemed to be a little worse.
I guess we also need to know what probe hardware you are using. If it is a scanning probe, and the yutz changed settings, then those same settings need to be changed in ALL your programs to match what he changed them to, OR, they need to be changed back to what they were so you don't have to alter every one of your programs.
Yes, correct tool was used.
The last time the sphere got sent out to be checked there was an extra riser added to it. We were using a new place to check it, I assume they added it for their needs.
We take the 1st hit manually so it shouldn't make any difference for our calibration, right?
location no but if you told it a different size then yes. verify the size is correct for your calibration routine. every little micron counts... they sometimes create their own tool file to use for their volumetric calibration tests.
you should always calibrate all your tips after the yearly volumetric calibrations.
Shouldn't make any difference in terms of size. As
KatmandudaMeow says verify reference sphere size for calibration, they will typically use their own.