This may not be new to some but it is simply awesome. Search for other 3D printing as well.
http://www.youtube.com/watch?v=aFFFiB_if18

Printing a bicycle with a 3D printer (9 min 42 sec)

we are looking at getting a smaller version at work. will be cool

I recommend the zen tool works 12x12 3d version .
We are developing a switch controller to allow
3d printing/milling with minimum change over .

Visit the site www.zentoolworks.com for more info , great prices for
What you get .