Some of you may find this intriguing: inferring a 3D model from a series of 2D photographs.
Swede's recent post inquiring what everyone is building with their machines reminded me of my earlier mystery of where people were getting all their models. I concluded that most people are making their own models, and then began looking into the ways I'd have to make mine.
I first looked into 'touch-off' scanning probes, but stumbled onto photogrammetry. The second link ought to be no step for people who've wired up steppers.
For those with more money than sense:
http://www.photomodeler.com/
For those with more time than sense:
http://www.cg.cs.tu-bs.de/people/lan...dscanner/index