Measuring Diameter on Cone (Cosine error)

[[Er...]]

Hi,

I'm using a Duramax with a z-down probe measuring the diameter on a cone with a target height. I know the machine will probe normal to the surface. The question is:
Is the height specified on the dimension box the low point of the probe or the tangent point? Is there cosine error associated with this measurement?

Thank you for the help.

[[No...]]

If you specified the correct cone angle (that is, the actual angle of the part, not the theoretical nominal!), then it shoulld be the tangent point. Otherwise there might be a cosine error.

[[Da...]]

I have only had success using cone calculation for this type of measurement. Circle on a cone is pretty difficult to get right, and a simple circle will not work. Probe the cone as a cone and then select cone calculation and specify where you want the diameter, OR the position. Works like a charm!

[[Ni...]]

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This.
scan that cone as a cone. Then cone calculation will give you the diameter at a specific height.
or it will give you the distance at a specific diameter.
works amazing.