3D printers

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http://www.thisiscolossal.com/2011/06/markus-kayser-builds-a-solar-powered-3d-printer-that-prints-glass-from-sand-and-a-sun-powered-laser-cutter/ Industrial designer and tinkerer Markus Kayser spent the better part of a year building and experimenting with two fantastic devices that harness the sun’s power in some of the world’s harshest climates. The first he calls a Sun Cutter , a low-tech light cutter that uses a large ball lens to focus the sun’s rays onto a surface that’s moved by a cam-guided system.

Markus Kayser Builds a Solar-Powered 3D Printer that Prints Glass from Sand and a Sun-Powered Cutter

3dp Blogs

http://hackedgadgets.com/2007/09/13/homemade-parallax-propeller-flatbed-printer/ This DIY flatbed printer uses the new Parallax Propeller chip as the brains, this new microcontroller is very powerful and has many uses. “First step towards a homemade 3D printer.

Homemade Parallax Propeller Flatbed Printer - Hacked Gadgets - DIY Tech Blog

RepRap 3D printer