help me measure it, how would u dimension it

hi all
i got a measuring/construction/engineer/noob problem.
i have this small 40 degree, 2 degree conical thing, that is supposed to have a diameter 6.86mm where it is as smallest, and its supposed to be centered in the casted hole(D), and perpendicular to the plane(A)
i dont know how to measure it, since its a very small surface, and its also not cylindrical, its conical with a 2degree angle.
so i have to measure it as a cone. and then construct a circle using cone feature, but the results are very unsure.

the matching part has the exact same feature, except its internal, and it should run free over the tap thingy.
how can i measure it
or how would u else dimension it, so that the matching part fits.
ty all, thanks for ur feedback

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JEFMAN over 2 years ago

First, I would construct BFRE cone on circles (it allows to skip cosine error, I think).
Then, I would measure surface points, and not vector points (for the same reason !)
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JEFMAN over 2 years ago

First, I would construct BFRE cone on circles (it allows to skip cosine error, I think).
Then, I would measure surface points, and not vector points (for the same reason !)
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NinjaBadger over 2 years ago in reply to JEFMAN

The issue is you can't construct a fixed RAD cone - you need to use fixed rad as the variability in diameter/centre point from such a small arc will not produce repeatable results.

Vector points would have to be given the correct vector, I'd prefer this over the use of surface points as the vector generated off a conical surface by approximation of a plane (even with a very small spacer value) would be less than ideal.
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