Secondary Alignment

[[To...]]

What am I doing wrong? I am measuring a pattern of 5 single plane points on the top of a part (which is conical). I created a plane using Recall Feature Points (using the 5 points) and used this plane for my Spatial rotation and Z origin. I used a circle for X/Y origin and a circle at 12 o'clock for my planar.

Next, I created a secondary alignment and used Point1 from above as my Z origin as I need to measure features relative to the Z value at that location. In the attachment below, I created a theoretical plane at Z0 in the BA. Then, I selected "Keep Position" and the secondary alignment and the plane moved up. When I converted the plane back to the BA, I had 1.085 in the Z value.

I can't seem to re-create in simulation, even with dispersion data, i.e. the theoretical plane values don't change at all.

Any thoughts?

Mystery 1.pdf

[[Ri...]]

Any reason you aren't using Recall instead of Recall Feature Points?

Are these Space Points, or Touch Points?

[[To...]]

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Because of this.... Plane Points because the surface is conical

Screenshot 2021-02-09 123155.png

[[Ri...]]

Hmm. Looks like a good ol' unintended software enhancement.

I think you are getting radius/vector comp.

I'd be interested if it behaves differently with Space Points. I'm not certain I understand the need for Plane Points, but that is more on my side of the ignorance of things.

[[To...]]

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It is a 1mm probe so 1.0845 is in the ballpark of believability. It was one of the first things that I thought of.