The Kickstarter success story of the Robox 3D printer has been followed up by the newly announced release of a compatible dual-material print head. The print head is based on CEL's proprietary needle and valve technology and allows the user to printer in either two different materials or in two different colors at the same time. Enthusiasm for both the printer and the dual material print head runs high at CEL and a company with energy like this is certainly one to keep an eye on. Check out more details at 3DPrint.com: http://3dprint.com/113996/robox-dual...al-print-head/