WOHOOW , Hi guys , have you seen this sh*t , 3d printer practically homemadehttp://forums.reprap.org/read.php?4,822
And it can be controlled with arduino http://www.reprap.org/wiki/RepRapOneDarwin
and it should be about $400.
I'm gonna start a little investigation to see how hard it would actually be to build one youself and if anyone if familiar with this please explain the stuff.