Probe Rack Collision

[[Dy...]]

Hello,
After probe rack change, with the VAST XXT w/ RDS, Calypso is defaulting to stylus #4. This causes a collision with the probe rack. Does anyone know how to make Calypso default to probe #1 or #2 after probe rack stylus change?

-Thanks in advance.

[[Cr...]]

You can change your approach parameters.
Or you can go into your stylus system window and make sure you change to the probe that makes since to you (Down probe is best) then hit ok. For some reason whenever you probe change the CMM will first go to the probe that you closed that window with. I made it my common practice to always change to the down probe before closing out of this window so there won't be any chance of collision.

[[Je...]]

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Dylan,

I haven't used an RDS in a few years, but I thought it may have been the case that the last probe you qualified is the probe that the RDS will activate after an automatic stylus change.

[[Ri...]]

Jeff is correct.
What you can do is change your approach distance to a value that will not allow a collision with your longest probe as it sits pointing at your probe rack.

[[Je...]]

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Since this topic is a bit foggy depending your typical practices and the version of CALYPSO you are using, I will give you the FULL list of items to address to ensure this isn't a problem.

Do each of these for EVERY stylus you assign to a rack position and you will no longer have problems and your programs will run faster as you will absolutely eliminate an unneeded rotation during probe pickup.

1 - Create a Stylus at A90/B0 (same position as probe changing rotation). Set its stylus number to #9999. Qualify stylus.
2 - Right click on the rack and define the approach parameters. X/Y offsets are of little value. You want to assign a 9999 value to the Z value for BEFORE and AFTER change. (no "DURING"). Close window. Again, X and Y values are of nearly zero effect after assigning a full Z limit value. This ensures your probe goes to the full Y limit while at Z limit above its rack position before rotation.
3 - Leave stylus rotation unchanged. Assign stylus to rack. If it is already assigned, remove it, reassign it.
4 - Store stylus in rack.

Repeat for all styli in XXT Rack.

Explanation of each since different versions of CALYPSO handle this particular interaction differently:

1 - Highest number stylus referenced after probe change sets it to A90/B0 = no rotation unless a rotation is needed by the program. Also will be last qualified in a qualification program or "auto qual" routine (as they are done in numbered order)
2 - Approach parameters of +Z9999 makes the sensor go to full Z limits before any rotation may occur. This prevents running into the rack with a A-90/90 rotation (typically a "#2" orientation) and not needing to put in a 200mm Y approach limit
3 - Assignment to probe rack set as last position assigned to rack.
4 - Stored to probe rack set as last position assigned to rack.

[[Dy...]]

Thank you all for your help!

We ended up adjusting the approach parameters to fit our needs. This was the easiest in our case.

[[To...]]

Whatever stylus is active when you close the probing system qualification window, becomes the default stylus when you pick it up in a stylus system change.