Hi Michael,
Thanks,
I adapted a technique that I'd usually use with a network surface in Rhino.
The Scaling Rail is very flexible because with history on, by editing control
points on the scaling rail, you can change the side profile of the ring after the circle is extruded, rather than having to undo and edit the curve without the cylinder there as a visual reference. And by scaling the control points of the top oval, the top face of the ring will change dynamically as well. I was able to make the top round by scaling the cp's 1D
I'll try to write a tutorial to go with it soon, but if anyone has any questions,
please feel free to ask. The trick to getting the base of the ring to be
smooth is the addition of little circle at the bottom.
Without it, the base gets angular where the curves come to a singularity.
Also, I've noticed that if you try to boolean the surfaces that are out
in space, it can get all messed up, so bring the curves to the origin if you'd like to work with them.
Jesse
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