Quote Originally Posted by RP Iron Man View Post
There are also those major problems. Metal flows too freely when melted. Also, there is the problem with oxidation, thermal expansion, etc...

The only feasible "metal 3d printing" seems to be SLS (Selective Laser Sintering), but unfortunately there are a bunch of patents restricting that process...

Eric
Well i've heard the patents for SLS would expire soon,
But still those machines will probably stay quiet expensive as they are now since well, even if you made it yourself i am guessing it would still be easily 5k :P
and i doubt the powders are cheap either.