Extreme Overhang on October 10, 2012 3D Printing 3d 프린팅 angled AR-15 lower minimum support tilted + Ultimaker 3D Printing 3d 프린팅 angled AR-15 lower minimum support tilted Ultimaker
Teenage Engineering Make CAD Files Available to 3D Print Replacement Parts on October 03, 2012 3D Printing copyleft op-1 open source + shapeways 3D Printing copyleft op-1 open source shapeways