We all know that 3D Printing has been around for quite some time, however only recently, due to advances in computer power, and other tech, has it begun to grow at an exponential rate. The History of 3D Printing is certainly an interesting one. I wonder what this infograph will look liek just 5 years from now. I bet the innovation in 3D Printing in the next 5 years will dwarf everything that has been accomplished these last 20 plus years:

A Brief History of 3D Printing: