Many people are considering unique uses for and implications of 3D printing. Lou Amadio wants to be able to print toys for his four-year-old son, or at least create replacement components for those toys inevitably broken or lost by the youngster.
Lou's approach is a bit more extreme than many might consider: he's not only going to print the toys, he's creating the 3D printer to do it with! He's been following the RepRap project, but instead has designed the Fabr. According to Lou's blog post, he designed Fabr as:
as a 3D printer which uses commonly available parts, requires minimal part fabrication, is highly accurate, and has enough power to not only extrude plastic, but can be used to mill metal, wood or plastic