Is there a way to control a qualification characteristic's movements?

[[An...]]

Our reference sphere is on the opposite side of the CMM from the styli holder, on SOME styli on SOME positions it does its Z- movement first then the X and Y movements. Is there a way to change this? The way it is currently moving is causing it to potentially crash into fixtures/parts/stands etc. I cant think of a way to add in move points since we are running purely characteristics.

[[Ke...]]

Without seeing your program, the only thing I can currently think of would be to split the probes in question into multiple qualification characteristics, that way you can control which tips it qualifies first via the order of the characteristics

[[An...]]

I do have it setup that way(If I am understanding you correctly) and changing the order does help but there are still a few dangerous movements in there. The bigger issue is that if one of them comes back bad and needs reran then an operator runs the risk of crashing when running just that single qualification characteristic.

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[[Ke...]]

Based on the naming it appears that this is a version of what I was talking about. It may be possible to combine some of these items to force the navigation to always occur the way you want, though it will have a slight efficiency cost as the operator will not be able to run just one tip, but would run the whole Characteristic, which may have multiple tips.

[[Ri...]]

If I recall from a job I completed at Cummins, they had two reference sphere holders with two reference spheres on each in four different orientations (+Y, -X and +Y, +X).
I think they went into "Automatic stylus system Change" and then "Approach Parameters" and set the "Before Change" and "After Change" Z axis values to "9999".
This forces all probes to clear in the Z axis maximum height prior to X, Y axis movement.

[[An...]]

So putting it as 9999 would do Z direction first correct? The smaller distances are done last for approach parameters?

That would explain why this is not an issue on our older machine but is an issue on the newer machine.

[[Ri...]]

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Yes, that is how it functioned at Cummins.

[[An...]]

Rick

I tried that and couldn't see any difference in its movement. Once it was away from the rack it went X then Z then Y. Changing the Z value from 50 to 9999 did not make a difference as far as I could tell. I will keep playing with it

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[[Ri...]]

Thats odd, I talked with the programmer at Cummins, those are the settings they use.
They inspect large diesel engine blocks which sit on risers that are about 200mm tall.
Every tool change moves in and out at Z max height, and it has to, some of their styli are 300mm or more in length.

[[Je...]]

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Changing the values in the in these dialogs will not impact the order of execution. Setting Z to "9999" is a common setting applied by the ZEISS Metrology Services AEs to ensure the machine always moves to Z+ limit during navigation. Kevin Harold may affirm as that is likely a project he was heavily involved in.

The project mentioned earlier was/is a site with very heavy involvement from the ZEISS MS team for very complex programming requirements and specialized PCM applications. Settings that appear in dialog entries may not have any impact on actual machine navigation or program settings.

If you need special navigation for a specific styli then the proper method is to create a special navigation path for that stylus so it follows set points each time it is run. This can partially be set with "Define Path" buttons in the Approach Parameters window or fully accessed within the Stylus System Management window. These paths can be monotonous to define individually so I would advise only creating for styli that require such navigation.

[[An...]]

Will "define paths" override everything else then? Both translation and rotation?

[[Je...]]

Controlled to the CMM System. All degrees of freedom are controlled.

Manage Stylus Systems > Stylus > Manual Path is used for a full definition during qualification.

Use the "Approach Parameters > Define Path" window to define special paths during stylus changes.

More info can be found in the CALYPSO Basic manual (C:\Program Files\Zeiss\CALYPSO 7.8\userinfo\manuals\en-US)

[[Ri...]]

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It was Zeiss who initially setup the Prismo's at Cummins (Many years ago), which is where I learned about using 9999 for tool clearing.