Hi Ken,

re:
> But I've been told for accuracy to use a NURBS modeling app. Apparently NURBS
> models work best with 3D printers, lathes, etc.

That seems like an oversimplification to me.

It really depends on the specifics of what you're going to be doing with the models.

If your model is a car body with no exact circular holes in it, there isn't really any accuracy issue in play there.

If your model is a mechanical part that needs to match up with other separate parts, then accuracy is a big concern.

It's also possible to use a hybrid approach - use poly modeling with sub-d smoothing for smooth organic shaped areas, then convert sub-d to NURBS using MoI's converter and then apply booleans or trimming in NURBS. This is getting to be a more common approach because it's easier to get smooth-all-over organic shapes in sub-d but easier to make precise things like exact circular holes in NURBS. So the hybrid approach kind of leverages the strongest areas of each system.

- Michael