Creating qualification for 2 reference spheres on same stand?

[[Lu...]]

Hello, for reference i have never created a new probe or a new qualification program or anything. I have done research but I am having a hard time finding info on a couple different things.

Currently we use a 30mm reference sphere at a 45 degree angle for every probe we have, even our small probes. this has caused some major inaccuracy in some of our smaller probes and I am getting it set up to where I would like to have the 30mm sphere standing straight up, and a 8mm ball at the 45 degree angle (unless there is a better setup that you all recommend). 

I believe I know how to edit our current reference sphere to stand straight up, and i believe i can figure out how to add another reference sphere at a 45 degree angle. what i want to know is do i need to put in somewhere that they are both there at the same time, to where when it does the qualification of some probes it doesn't crash into the other sphere? I'm going to be creating a new qualification program that would hopefully qualify all the probes at the same time, though if necessary i will have 2 separate qualification programs for out smaller and bigger probes. 

Is there anything else to consider when modifying the qualification spheres? I have never had any official training on CMMs and though I have found work instructions that help I havent yet seen something about this. Thanks!

[[Ma...]]

I think there is no problem with having two ref. spheres on same stand. Calypso is asking only for it's center.

If you are removing that stand with spheres, then you have to first tell it's new position of both spheres before running a program.

If i remember correctly, then in program you have finding center of ref. sphere ( i am not sure if you can select which ref. sphere is selected ), but in program you have two spheres with correct diameter, which will later be used for calibration.

[[Lu...]]

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So Calypso wouldn't crash into the other sphere during qualification even without telling it to path around another sphere?

[[Ma...]]

That's not what i said - you would describe closely how they would be used, positions and so on.

We are using star probe systems, so we have one ref. sphere at 45 angle and rotate it by 180° to cover all 5 probe tips.

Calypso won't alter movements just because there can be next sphere, but if you correctly set calibration, then you can avoid collisions.

[[Je...]]

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Hi

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.  Thanks for posting about this.  Very interesting.

We use a measurement plan to qualify all stylii, and this utilizes both 30mm and 8mm spheres.  These two spheres, however, are mounted on different posts.

Important:  Calypso does not automatically adjust the navigation paths of a stylus qualified on one reference sphere based on the location of another sphere.  Collisions are possible without proper planning.

If it's necessary to fixture both your reference spheres on the same post, you'll need to plan for clearance.  I'm sure this can be plotted and mathed, but you can also just observe a qualification in CNC on slow speed to get an understanding of required clearance.

Edited 1 hour ago