Check out this amazing tech made with a 3D printer. Its a all metal 1911 pistol and not only does he test fire it from a distance with a string, but he then continues to pick it up and hold it while firing off some rounds. This is a great demonstration of how 3D metal printers can be used and the gun being made was probably just to get the worlds attention not he new tech that made it.
You see, in the future an iPhone or HTC will be made entirely by one single 3D printer. It will create the wiring, components, processor, memory and screen all while making it, just by swatting materials, but always working on making it. This will not only make things like phones cheaper, but also stronger. They will be able to work underwater, since there are no seems for water to leak into. Latter of course this 3D metal tech will be put to use creating entire cars in one shot...meaning there won't be separate parts that have to be put together like the gun has. This 3D metal printer is an awesome start, but I am talking about what this baby is going to evolve into in the future.
Can you imagine, a car or motorcycle printed out with no pieces to assemble? Its coming.
For more info on the 3D metal printer company that made the gun please click here. This company can see the future. http://blog.solidconcepts.com/industry-highlights/worlds-first-3d-printed-metal-gun/