[Lawtonfogle]

>Even if I had a printer I'd need some fancy scanning equipment to figure out how to make the key.

Keys have been reproduced from a single photo before. It seems to always involve someone who has experience making keys using the photo to reproduce the key, but in theory software could be able to automate this for the easier cases.

[hawkice]

If I have a key or picture of a key, yes. If I have access to just the lock, I can't figure out how to do this without some odd equipment. And if the 3d printer + just the lock can't do something new, then how do 3d printers make traditional locks obsolete?