Using a 3D printer to help make a Mold

Nice write-up on a guy who used a 3D printer to make parts to make the mold for the “rubber” part for his prototype.  Not the most practical way to do this, but for small things or just one of a kind..

http://hackaday.com/2013/03/12/molding-rubber-for-a-pre-production-prototype-use-a-3d-printed-model/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29