Dearborn 3-D printer maker unveils 328-foot chain

3-D printer and material maker EnvisionTEC Inc. showed off a 328-foot chain at Cobo Center in Detroit on Friday to tout a new extra-durable product. Dearborn-based EnvisionTEC says the chain created on a 3-D printer in E-RigidForm is the world's longest resin chain made in one piece. It took more ...