Hi Burr,

> Yeah, for the NURBS I would have to follow up with
> fillets and blends and things...

Yup, but depending on the situation it can be hard to put blends in on things that are branching in multiple directions nearby each other or also on areas where the protrusion is more of a broad wide area making it more of a shaping to the base object rather than a little tube coming out of it.

The other thing is that drawing a curve and using it to trim or project a hole is a much different kind of a step than box modeling, but one which is a big advantage to NURBS modeling for mechanical shapes since you can cut a precise hole anywhere you want in a NURBS model but in box modeling you have to try and manually arrange a bunch of vertices from the base shape into the shape of your hole.

- Michael