Rotary Table & Calypso

[[Lo...]]

Hello everyone,
I'm looking for some assistance. Attached a picture for reference. The part I am trying to inspect has pockets 120 degrees apart. Using the rotary table I can get the part rotated 120 degrees to inspect the planes. But the probe is not going into the pocket to scan the plane. It is colliding on the edge of the part. Now if try to change the degrees to compensate (125degrees to 120 degrees) the probe will go into the pocket but drive well past the plane. I have been going at it for a few days and have come up empty.
I appreciate any assistance.

Thanks,
Lou

Capture.PNG

[[Ow...]]

Are you using the RTCP clearance planes?
Do you have "base alignment rotating with RT turned on for the feature? This can be set in the "measurement plan editor" tab.
If using the part to align the table using "RT axis alignment, method 2", them features used for the method 2 would need to have the ""base alignment rotating with RT" turned OFF.
Maybe not necessary but, short of time to reply later, I'll add the RT alignment instructions incase you've never seen them. You never know what a person knows when replying so, too much info can't hurt.

RT Alignments.pdf

[[Lo...]]

Hello Owen,
Thanks for the reply. I am using RTCP clearance planes. And I do have base alignment rotating with RT turned on for the features. I am using the Reference sphere method with RT Axis program to align the RT. I have used the RT with Gear Pro inspecting gearing and splines with success. And have only really used a little bit with Calypso. So I am kinda green when it comes to using the RT with Calypso. For the most part I am able to inspect the part I have attached other than the pockets there are some symmetry and true position call outs for those features I would like to try and get.
Thanks,
Lou

[[Ow...]]

What feature are you using for the Planar alignment, one of the holes at top?
Does the rotary table rotate back to zero to measure it?
I've measured non-gear parts on a rotary with Calypso but, it's been a few years. Seems like I've encountered the same issue too but, can't remember what the fix was.

[[Lo...]]

I am using the one of the holes as a cylinder on top for the planar rotation. For the holes the I the RT doesn't rotate. It rotates for the the shaft and I would like it to rotate 120 degrees for the pockets. After the program is finished it will always go back to zero.
Thanks,
Lou

[[Ow...]]

Lou, I know it can be done because I used to do it a lot.
It's got to be something we're missing.
If you have an active software maintenance agreement with Zeiss, I'd recommend you give them and call and have them log-in into your computer to evaluate the program.
Throwing out some possibilities:
Not sure how long the part is but, you might try rotary alignment method two to ensure there is no wobble projection throwing it off.
Would be difficult with the 3 interruptions on the top OD but, if the ID (at top) is supposed to be coaxial tight-tolerance to the bottom cyl you could use it.
You'd want to make sure the rotate with alignment is turned off for the top, bottom and planar feature when using method 2.