Radial Groove

[[Me...]]

Hello Zeiss Community,

Needing some help here! I'm trying to check a section of a radial groove to get the diameter and location of it. I can measure the grooves that run longitudinal no problem its when I try to measure the radial grooves I get an exception as if it cant pick a circle on the feature I have attached a screen shot to try to show what I mean.I managed to put a section line through but still having problems picking it?

Any assistance would be greatly appreciated.

Radial Groove.JPG

[[Da...]]

Because it's a torus !

[[Me...]]

Yes I realize that is it a Torus, and when I open up the torus in the special geometries and try to pick it as such it doesn't populate the Nominal boxes. So maybe you could point me in the right direction as to what I'm doing wrong or maybe not?

Thanks

[[Me...]]

Create a Circle feature from the CAD Model by sectioning if that's what you're looking for...

[[To...]]

You could also use "Define Circle on Cylinder". Click on the Torus where you want to measure the circle. You'll get a prompt to select the Main Radius or the Subsidiary Radius. Choose Subsidiary Radius and it will populate a circle right where you clicked on the model.

[[Aa...]]

Either it's not really a torus in your CAD model, or there's so little of it that Calypso is having a hard time figuring out what it is.

[[Da...]]

You could put in a section across the torus then use creating features to put Space points on that section. Then recall the points into a circle. Not sure if you NEED curve to do that..

[[Da...]]

If that works, you can pattern the space point group as a scallop and get all the rest of the grooves in "one" feature. you'll still get individual results.

[[Da...]]

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Looking at the blend lines in the cad model, it looks like it might not be a torus "exactly"

[[To...]]

To me, it looks like he probed 3 points on the radius with the probe. Since all circles snap to the closest primary axis, which in this case is X, his circle has re-aligned itself with the X axis. That's why there is an X Space Axis and the Scan Path and Nominal Points appear to be rotated to the X orientation though the green actual points appear to be more normal to the surface. I think if he works off the CAD model using either Define Circle on Cylinder, or going through the steps to build a circle from a section line, he'll have a positive result.

[[Aa...]]

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Good catch. Yes, that is what it looks like for the "Circle 3" feature the OP showed. But what about where the OP tried creating a Torus feature from the surface, and Calypso wouldn't populate the nominals?

[[To...]]

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I think OP tried to create a torus by probing it and possibly didn't take enough points. If he had used Define/Select Geometry or Extract Features, he would have created the torus.

He created the section line but I don't get the impression he is using the Create function to generate the circle from the section line.