Hi Brian,

> Might be scriptable? Or not worthwhile?

Probably kind of difficult to script, and I'm not sure that you're going to get a really great quality result anyway, for that approach you probably really need an n-sided patch command which I do want to add into MoI in the future.

A different approach is to model the hub piece more directly by a revolve and then use filleting to make the blending, see the attached version.

By modeling the hub directly you are in more direct control over the shape of the hub itself and is able to be a totally uniform and well shaped surface of revolution in the center of the hub this way.

- Michael