Hi Finema,

> Are you sure T-Splines plug-in convert very well complex form ? Just remind, in my work, i
> must sending professional IGES to the manufacturer.

I've seen some examples of complex jewelry pieces that were successfully converted to IGES so I think it can work well for that.

It may be a good method to test out anyway if you want to construct things in a sub-d modeling program and then convert to NURBS surfaces (in IGES or STEP format) at the end to transfer to CAD.

- Michael