and he made an instructable, what a peach.
http://www.instructables.com/id/SRH0UMKFAQDX721/also, there's numerous open source 3-d printer/rapid replicator projects out there if you google it. basically as the greatest depression/the crippling of babylon approaches (but not the internet! w00tz!), we'll have to stop relying on large corporations to manufacture our technology. so it's a good thing that peeps is on it.