Dr. Enrico Della Gaspera, materials chemist and postdoctoral fellow at the Royal Melbourne Institute of Technology (RMIT), has developed a method of printing electronics with either a 3D printer or regular inkjet printer. The technique involves drawing the electrical circuit with a conductive ink, then placing it in a "flash chamber" device that hits it with a short, intense camera-like flash of light that changes its properties. He hopes to use the technology in the future to print cheap, foldable, portable and even disposable solar cells and other electronics. Read more at 3DPrint.com: https://3dprint.com/145082/3d-printed-electronics-rmit/