Gene Anzalone uses 3D printing in a slightly different way than we've seen before. He prints 3D objects as other engineers might. But then things are a little different. He uses the objects directly in design meetings rather than taking traditional 2D diagrams. The 3D objects instantly convey much more information about the item under consideration far more than diagrams ever could, and as a result work can proceed more effectively.
Today we use white boards and the backs of envelopes to get our point across to others. Perhaps in the future we might use high-speed 3D printers instead. This is yet another type of 3D print usage: show people an object instead of approximating it with a 2D drawing.
Via Masty Wizdom