How to do a Cabochon Edge?

Rhino
1

I am trying to figure out how to do this kind of loft on different shapes. Does anyone have a suggestion that’s simple?

For example on a circle shape, a rectangle, triangle.

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4

rail revolve may be worth taking a peek at.

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5

So, you want a four/three-sided pyramidal form emerging from a circular, rectangular, or triangular base? Is that what you mean?

6

Yes!

7

Yes this is great!

8

Rail revolve with carefully constructed curves and history enabled is a beautiful thing. :wink:

9

Does anyone have any good tutorials on constructing curves on rhino?

10

watch this entire series.

11

also this will be helpful- it’s subd oriented but rule of three is based on good nurbs curve creation.

12

Thanks very helpful!

13
  1. Simplest method is fillet edge and select all edges of a solid.
  2. If machining is not an issue, shrinkwrap with offset.

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14

I’m a jeweler and will add that almost every cabochon has a different edge profile and thickness and angle. Quad Remesh with SubD soft-creases are excellent for cabs and all their subtle nuances (which if you get it wrong makes them very much a pain to set in the mounting!).