Your faucet is leaking at home again, spreading a puddle of water all across your kitchen floor. You go to find the crescent wrench but it's nowhere to be found, and the hardware store is closed. What do you do now? For some people, it's now easy: Go to the computer and print a crescent wrench.
The technology, known as 3-D printing, makes this idea, once the stuff of science fiction, very real.
A 3-D printer, which is very diferent from paper printers, creates an object by binding layers...Full Story