Washington, D.C.-based electromechanical systems lab Tropical Labs specializes in custom electronics, and they're very creative about their work. The creators of the Mechaduino have also built a delta-style 3D printer out of a coffee maker, using a simple design and only ten additional components. You can see how they did it in a Hackaday post, as well as on their website. Read more at 3DPrint.com: https://3dprint.com/163946/coffee-maker-3d-printer/