Wow, this is a pretty awesome device if it does what they claim it will. The Spectrom device was invented by 2 college kids. It costs about $100 and can be installed on basically any 3d printer out there. The computer send code to Spectrmm and that tell the device when to switch colors. This could certainly be a nice step towards cheaper multi-color 3d printers.



Here more details about the Spectrom device: http://gigaom.com/2014/03/06/two-col...less-than-100/