Portable and Affordable: New 3-D Printers That Cost Less Than $500: It's been easy to overlook some of the innovations coming out of the RepRap community as of late. Between regular MakerBot releases and announcements for new types of printers like the B9 Creator and Form 1, as well as a steady stream of big company announcements, the system that helped launch the home 3-D printer market has been a bit overshadowed. A couple new machines deserve attention though, offering unique features that the more mainstream devices don't have.