The very first computer that could be built at home was the Altair 8800, which was introduced in 1970. It was touted to be a desktop computer revolution by most of the historians. Now, Hod Lipson, Cornell assistant professor of mechanical and aerospace engineering, shares the same sort of feelings for his little machine dubbed Fab@Home.
He further hopes to see ‘fabber’ in each and every home so that people could imitate objects from plans given by a computer. For example, you wish to make an MP3 player, you need to get the instructions from the computer and the ‘fabber’ will make one for you. Isn’t that great?
Now, 3-D printers based on this technique are being used by industrial engineers for “rapid prototyping.” The designs are developed in the computer programs and then the working plastic models of 3D printers are made.
A 3-D printer has a small nozzle that scans back and forth across a surface, depositing tiny droplets of quick-hardening plastic. After each scan, the nozzle moves up a notch and scans again until it has built up the complete object, layer by layer.
Well, the pricing for such systems start at around $100,000 but you can make Fab@Home for a mere $2,300. The prototype, designed by Evan Malone, a Ph.D. candidate in Lipson’s Computational Synthesis Laboratory, is slower than the saleable models and down on resolutions too, but people are finding sensible uses for it.
The site offers notes on the history of 3-D printing and discussion groups. Fab@Home is “open source” and is intended to inspire the new fabbing technology.
Via: Physorg

















