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Issue with rotating head

My machine tries to rotate to say a90b80 and it only gets to say a40b80…same issue with a few other tip angles…then, I believe it tries to probe the cal sphere with the head at the wrong angle, and of course the tip is no where near the cal sphere so “probing not within limitation.” I believe that is the error. I haven’t seen it happen in action yet, but when I returned to the inspection lab I believe the red light on the head is turned off and the head is disengaged. If I recall correctly, I don’t think I had to hit the estop to reset the jog box. I cancelled running the program, then I typed tip/T1A0B0. When it asked to rotate to A0B0 I clicked yes and it worked fine. Then I tried the same thing with the tip angle in question (a90b80). Again, rotated fine. So I’m not understanding why my program won’t run through…

Any ideas what the problem might be? I tried changing the probe module and wiping down the scales. No luck.

So far, this issue is only happening with my auto calibrate program (which calibrates “all tip angles”). I haven’t tested running a part because the machine is not fully calibrated. However, my auto calibrate program has been unchanged for about a year now…I don’t believe I have even added a single tip angle recently…my autocalibrate program has been working so well up until now!

Sorry for the wall of text, I am just trying to figure this out. Tomorrow I can try calibrating different probes and see if there’s the same issue with the other probes.
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  • The head is a Hexagon HH-A-T5.

    I am attaching a photograph of the machine when I got in this morning as well as a screenshot of the software. It stopped at one of the few tip angles that it keeps stopping at. They are all A90BXX. It looks like it tried rotating to A90B-60. It only got to A30B-60 and stopped rotating.

    So far I've tried: restarting the machine, changing the probe module, and wiping down the Z-axis scale. I am opening a ticket with Hexagon but if anyone has any ideas at all I would really appreciate it...

    Attached Files
  • Could be that the head is on its way out.
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