Needed: 3D auto parts
I think HP is onto something with the Multi Jet Fusion. A simple example: an auto repair shop needs an odd part for a make, whose parts it doesn't stock. Instead of setting up a delivery, it gets a prescription for what metals it needs to stock its 3D printer with and a 3D diagram of the part. The printer goes to work and the car is repaired on the day it's brought in, no delays, no problem. A particular metal might need to be delivered from a nearby distributor, but not the finished part. The finished part is delivered electronically.