Bozardeux, a recent French graduate and Instructables user, has undertaken a project to make an open, 3D printed
DSLR camera. All the parts and designs are licensed CC Attibution-ShareAlike.
3D Printed Camera : OpenReflex by Bozardeux (Thanks, Gregory)
The OpenReflex is an Open-Source analog camera with a mirror Viewfinder and an awesome finger activated mechanic shutter (running ~ 1/60°s). What's more, it's compatible with any photographic lens with custom mount ring.
All the pieces easily printable on any recent RepRap-like ABS 3D-printer without using support material ! Everything should print in less than 15h and anyone should be able to assemble it within 1h.
All parts are separate ( Film receiver, Shutter and Viewfinder ) to simplify builds and modifications. The source files are available under the CreativeCommon By-Sa license, fell free to modify them if you want a new feature, and don't forget to share your improvements on the web ;)
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.