depending on the surface you have you can try extracting both of the surfaces edges, loft them together and join everything up.
On May 11, 1:35 am, LML <mac.lanph...@gmail.com> wrote: > I'm wondering if there's a way to replicate rhino's offset surface > "solid" option. I would use extrude curve/surface, but I don't have a > convenient vector to use.... > thanks > LML