The thought that anyone can download and then make (print) a design that was developed and shared by an individual somewhere in the world is hard to take in. The whole concept of proprietary information, corporations, mass manufacturing is all thrown out the window. An example is what I did tonight. I downloaded the 3D model of a Z-axis wobble eliminator from the ThingiVerse website, ran it through a program which converted it into machine code, and then printed it out right in my own home!
It is hard to imagine the possibilities. Below are the videos of the printing:
Initial stages of the printing.
Printing final stage of the Z-axis wobble eliminator.