Teen Uses 3D Printer to Make Robotic Prosthetic Arms for $500 - This is the work of 17-year-old Easton LaChappelle from Colorado. He has used a 3D printer to create a fully functional prosthetic arm and hand that comes with robotic technology. The hand can grip and hold things; even cooler, the 3D-printed robotic prosthetic arm can cost less than $500 to make. | Mobilemag
This new artificial limb is powered by rocket fuel. A team of mechanical engineers has created an prosthetic leg that is powered by a special type of liquid fuel called a monopropellant — the same kind of fuel that gives rockets their thrust. The new device could usher in the next generation of prosthetics — powerful and light-weight artificial limbs that will look and function more like the real thing.