http://www.psfk.com/2014/11/functionalize-3d-printing-circuit-boards.html
http://www.youtube.com/watch?v=pESuE6m1iv8
http://www.youtube.com/watch?v=uwcAnbVhruQ
http://www.usatoday.com/videos/tech/personal/2015/01/08/21438895/
http://www.instructables.com/id/3D-Printed-Circuit-Boards-for-solder-free-printab/?ALLSTEPS
http://3dprint.com/34674/3d-printed-pcb-printer/
http://3dprint.com/43415/voltera-v-one-printer/
http://www.instructables.com/id/3D-Printing-3D-Print-A-Solderless-Circuit-Board/?ALLSTEPS
http://www.instructables.com/id/Make-Flexible-Circuit-Boards-Using-A-3D-Printer/?ALLSTEPS