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Calibration. Different results

I greet you all, colleagues.
I have a small problem that tends to come and go when calibrating angles. I work with many styli and use a 9-slot magazine for this. Each stylus has about 10 different angle positions. When I did the calibration, two angles on different probes were out of tolerance. One probe has a CM25-2 probe and the other CM25-3. And at the same time, PSDMIS accepts the calibration result without asking the operator. The next day I did a similar calibration and the result was OK.And always out-of-tolerance angles equal to A90 or more than A90 It is very strange . I have been working in this mode for 3 years and there were no such problems. And this year it started. I check the probes visually and do the cleaning before each calibration the same way always. What could be the problem ?

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  • Hi all,
    As I'm sure that the question is about calibration and not war, I believe that any answer could be usefull for anyone here, russian or not !
    Sergiy, i think the rotation head is missaligned, because of more than 1 mm difference between theo and meas on 2 axes at A90.
    In addition, you're using a 10 mm ball, so, function of the sphere stem, maybe some hits shank the stem (even if the std dev seems to be right.
    I don't know enough about SP25 to help you more...
  • Jeff , my respect for You . I thank you for Your experience, with which You help many in the world of geometry, and me too.
    At the moment , I am in touch with official HEXAGON support . I'm trying to figure out a solution to these instabilities. As soon as I find the answer , I will definitely tell You about the result .
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  • Jeff , my respect for You . I thank you for Your experience, with which You help many in the world of geometry, and me too.
    At the moment , I am in touch with official HEXAGON support . I'm trying to figure out a solution to these instabilities. As soon as I find the answer , I will definitely tell You about the result .
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