If you try to draw a portrait but you usually end up with something like... three circles inside a circle, then this is the machine that you need! Kyle McDonald and Matt Mets built a machine that will turn you into an artist without requiring any artistic skills at all! As a matter of fact, you won't even need to look what you're drawing.
The machine uses a laptop with a camera to "look" at you and convert your face into a line drawing. Then, a hacked (to the bone) Thing-O-Matic 3D printer will move your hand. You only need to hold the pen and rest your wrist and arm on the moving platform!