It goes without saying that the heart of manufacturing is innovation. From the cotton gin to the steam engine to the assembly line to the CNC, the manufacturing process is always being reinvented, refined and reimagined. Today, a lot of the talk is about additive manufacturing, and justifiably so. Since its dawn in the 1980s, AM has moved from a “that's neat†tool for hobbyists to a valued tool for prototypers to making fixtures and long part runs.