3D printing
With 3D printing we can make any thing that can be made on a CAD software out of plastic, some metals, and even stem cells. the way it works is that you design a 3D object on Inventor. then when you believe that it is ready you export it to maker-bot that set that up to print the item in the easiest to print. after that you take it to the 3D printer and let it do it's thing.