Technology and 3D printers really blow my mind sometimes. This young man was born without a hand, back in the day there was really nothing you could about that especially if you weren't loaded. With the help of the internet this boy's father found out how to print a new had for his son with a 3D printer.
I think this is the most fascinating video that I've ever watched. 3D printing is a cost effective solution to create real parts from 3D CAD data. A number of materials can be used including nylon, prototyping plastic, thermoplastics and metal. 3D plans for the future will blow you away in this amazing.