>Mr Schmitt says it should be possible for a robot builder to specify what a servo needs to do, rather than how it needs to be made, and send that information to a 3D printer, and for the machine’s software to know how to produce it at a low cost.

This is where I will shamelessly plug my startup, DesignByRobots. The overview of the technology is here: http://designbyrobots.com/2011/01/17/first-post/