A $2,300 3D printer isn't really anything special anymore. We've seen them as cheap as $350 in fact. But all those affordable units are of the extrusion variety -- meaning they lay out molten plastic in layers. The FORM 1 opts for a method called stereolithography that blasts liquid plastic with a laser, causing the resin to cure. This is one of the most accurate methods of additive manufacturing, but also one of the most expensive thanks to the need
