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Cast Circles from a Cone

314RK
Hi!

I'm looking to capture a chamfer diameter where it meets a planar surface. I was wondering how a cast circle works from a cone feature and the accuracy. I have a chamfer diameter that I am trying to capture and I saw someone take a cone feature and create a constructed circle from it, using the cast option. The nominals of the constructed diameter look correct. Would this be an accurate way of reporting this dimension on a real part where there are deviations? Where does the Z come from in the cast surface? Trying to avoid having to take more points to create an intersection diameter. Please advise;

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  • When I do this, I get better results if I measure the hole under the chamfer, make an alignment zero'ing that hole, and then measure the cone. Even better if the chamfer is short, measure the plane first and when I zero out the hole, set the 3rd axis zero on the plane so I know my hits are good on "Z" without a ton of "depth" set for that outermost circle.

    Go back to original alignment, keep measuring parts.

    Doesn't matter what alignment the intersection is done in.
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  • When I do this, I get better results if I measure the hole under the chamfer, make an alignment zero'ing that hole, and then measure the cone. Even better if the chamfer is short, measure the plane first and when I zero out the hole, set the 3rd axis zero on the plane so I know my hits are good on "Z" without a ton of "depth" set for that outermost circle.

    Go back to original alignment, keep measuring parts.

    Doesn't matter what alignment the intersection is done in.
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