Photos of PrototypesMy latest prototypes are very light. They're made with the Teensy board, corrugated plastic and coat hangers. A previous prototype (summer 2008) made with machined parts is here. Below are my original prototypes. I also have a more adjustable version. See also the beautiful pictures sent to me by Stéphane Doutriaux and Darcy J. Currey. Russ Nelson is also working on prototypes. Back in Februa
