Boat hull problem

[Tom_P]

did you see this great topic ?

Boat hulls with smoothly curve stems - how to model

Hi David, Good initiative with this thread! In general I avoid the “split” approach because Rhino is having problems with NURBS corners where u- and v-directions are parallel or tangential. You’ll notice when you for example offset these surfaces: [image] I think Rhino should handle these cases better in the future because when you convert a SubD-Ngon ToNurbs then you’ll also get exactly such a corner. Anyways I’ll avoid it because other NURBS applications downstream in the marine industry…