I want to make this model in rhino
http://members.cox.net/rpfer/screencaps/bscap033.jpg
The problem im having is it has a round inside, and a 16 sided polygon out side. When I loft the 2 together, it makes it smooth. The surface needs to have facets. Not only that, it only needs 8 facets.
Any ideas on how to go about making it?