Vanguard's point is correct as far as it goes. I think Reichental is correct in saying that the machinery will become more cost efficient in the future as the industrial use of 3D printing moves away from a reliance on prototyping and towards printing one-off items to suit individuals. My interest is in printing prosthetics for amputees, and other bio-structures.

I see domestic 3D printers as items of transient interest to the majority of the population, but there will always be that hard core of enthusiastic tinkerers.

Old Man Emu