3D printing: What is it, and how does it work? Three-dimensional printers were all over the news this week, from a plastic printable gun to a live-saving medical device. Here's a roundup of 3D printers and how they made headlines this week. Photo Above: MakerBot Replicator 2X 3D desktop printer is on display at the MakeBot booth at the International Consumer Electronics Show … [Read more...]