For this model I used some of the concepts from the original Dymaxion model where the whole structure is supported on a single, central pole. The parametric model is built in Digital Project (Catia) and has a number of user controlled parameters. The most basic of these is a profile which defines the overall shape of the unit in section. In addition, you can define window dimensions, number of panels, door width, etc. Also controllable is the double curvature of the windows and metal panels. I have uploaded the original file as well as a 3dXML for those who don't have access to DP/Catia - a free view is available on 3ds.com.