Cotter, Caleb: - Caleb Cotter works at Printrbot as an R&D Specialist. He's a maker with a passion for 3D printing and rapid prototyping. He's fascinated with the world of opportunity in which you can make anything on your desk. When he's not in his garage hacking up stuff, he's still in his garage hacking up his car. On the rare occasion he's not making anything, he's out exploring or getting into trouble with friends.