Markus Hatzenbichler and Klaus Stadlmann with their micro-printer.
A group of engineers at the Vienna Institute of Technology, claims they’ve created not only the world’s smallest 3-D printer, but also one that’s so light and inexpensive that it could conceivably pave the way for truly domestic 3-D printing. Lost an earring or a cuff-link? Print one out. That’s the future, and it might not be far off at all.