Qualification of Reference Sphere Position

[[Le...]]

Hi all, 😃

I'm new to the forum and I was hoping I could get help with an issue.

I get the following error in the status window when attempting to qualify the reference sphere position (VAST XXT).

"23 Nominal probing point with Pos or Step not within search path"

Specifically, this occurs after I have taken the probing point in the direction of the stylus shaft as instructed. I'm unsure how and where to change to settings for the search path in this instance.

The master probe will begin to approach the sphere, and then stop just before it reaches the sphere, switching it to red on the traffic light.

I have checked to make sure that sphere parameters (radius etc.) are correct, and I have tried restarting the system. It was last qualified on Friday, and I have been unable to qualify since yesterday.

Also, the CNC probe changes on the rack are still storing/loading at the correct heights. So I don't think the probe is sitting at an offset height in the z-axis.

The only change that happened last week was qualifying a new stylus on a smaller reference sphere. I've attempted qualifying on both spheres and the same error occurs.

I am new to Calypso and CMMs in general and I was wondering if anyone has had a similar problem or has any ideas to try out. It might be a simple fix or some setting I've missed.

Thanks for taking the time. 😃

[[Aa...]]

Just a shot in the dark: what is the qualified size of your master probe?

[[Me...]]

Are you still able to run inspections in CNC mode?

[[Le...]]

I checked this morning and the master probe radius is 13.5006mm. Our usual reference sphere's radius is 14.999mm and the second reference sphere is 4.0005mm.

Already I can see that the radius for the master probe is way too big 🤣

I'm assuming there was a bad measurement of its radius during the last qualification. It sounds like this is causing the problem.

Is it a case of just changing the master probe radius to its nominal? Or does it require some qualification of its radius? I'm always hesitant to change anything when it comes to the master probe.

I've also checked one of my inspections and it seems to run in CNC (after manual alignment) as expected, no collisions or unexpected force errors.

Thanks for the help thus far.

[[Le...]]

Update: I tried changing to nominal to the correct size and re-qualifying. That's everything back to working as it was.

Still, I don't know how the radius managed to get that far out. But I'll make a mental note if I see the same thing again to check the radius.

Thanks for all the help guys! 😃

[[Aa...]]

Someone must have used the Master Probe to locate the wrong Ref Sphere. In Calypso, they were locating your 30mm, but they actually touched up to the 8mm. (That should have resulted in Calypso coming up with a negative probe radius. I would think it should give a warning message of some kind, but instead it just plugs along giving you information that is obviously very wrong...)

[[Za...]]

I've been using Calypso for about 6-7 years now, and I've never ran into this issue until now. I had the same exact issue as the OP and was only able to fix it by resetting the master probe. My question is, what is the correct way to manage multiple reference spheres? I have both spheres setup and I was able to qualify all of my tiny styli using the smaller sphere, but the next time I went to probe reference sphere 1, it automatically changes to reference sphere #2 which is for the smaller reference sphere. Is there not a way to switch back and forth between reference spheres? Is the method not the same when I switch reference spheres? Any feedback would be appreciated!

[[De...]]

Every time this has occurred it was because I located the wrong sphere. Changing the master radius to its nominal value, selecting the correct sphere, and re locate the sphere is how it is corrected. I believe the reference sphere remains the same until you change it. This means the operators need to pay attention because if you locate to the wrong sphere and then qualify Calypso would calculate you probe size based on the wrong values. I had to write auto qualification programs to get around this so operators were not doing this manually.

 

[[Za...]]

I supposed it's possible that I had the wrong sphere selected when I tried to locate this morning, but that's crazy that it throws everything out of whack by that much. I was selecting Qualification Sphere '1' and it kept defaulting back to '2' in the box where you select the sphere. I was wondering if it was some kind of bug, or if I really just messed up bad and didn't get any kind of error to confirm what I did.

[[Za...]]

So what is the proper way to switch back and forth between Qualification Spheres? Do I not need to use the master probe on the 8mm sphere?

[[Jö...]]

Hallo Zachary,
hast du bei deinem Kalibrierprogramm auch die passende Kalibrierkugel deine Tastsystem zugeordnet.
Wenn Du das gemacht hast , sollte es eigentlich automatisch zur Richtigen Einmesskugel wechseln.
Kontrolliere bitte mal deine Einstellung im dem Fenster PRüfpläne, dann auf einen Taster gehen und es öffnet sich ein Fenster, wo dein Taststifte und die Einmesskugel hinterlegt sind.

Hoffe das hilft dir weiter

Siehe Bild

[[Za...]]

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Thank you for the response Jörg, 

I figured out what I did wrong. I think, initially, I touched off on Qualification Sphere #2, when Qualification Sphere #1 was still selected. I ended up having to reset my master probe, and I believe I should be good to go now.