how to pick the top of a cone

[helperug]

Hi,
How can I pick the apex point of a cone in Nx8 easily, the point constructor control point doesn't work?

sorry new in NX
regards
Erwin

 

[mmauldin]

I don't know how to pick the point directly, but if faced with the same problem, I would create section curves based on a plane that runs through the axis of the cone then pick the end of the curves. See attached.

 

[JohnRBaker]

Not sure what operation that you're performing but lets say it's something like wanting position the center of a Sphere feature at the apex of the cone. So when the Sphere dialog opens and you're in the 'Center Point and Diameter' Type, instead of just trying to use either the 'Inferred' point method or by setting any of the 'Snap Points' from the Selection Bar, simply select 'Point Dialog' icon in the the 'Center Point' section of the dialog and when the 'Point' dialog comes up, from the Type list, select the 'Point on Face' option. Now select a point anywhere on the conical face and then in the section of the dialog titled 'Location on Face', enter the value of '0.00' for both the 'U Parameter' and the 'V Paramter' and hit OK. You should have a point 'handle' displayed at the apex of the cone and you can now complete your creation, whatever that might have been.

John R. Baker, P.E.
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Siemens PLM Software Inc.
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[helperug]

thanks to all replies,
I thought the control point offer this option directly - What geometrie does the control point control?, thanks in advance

sorry new in NX
regards
Erwin

 

[cowski]

The control point option will snap to knot points in splines. It may snap to other geometry as well, but that is all I have used it for.

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