Additive Manufacturing, 3D Printing, and the Coming Stock Market Boom

We’re at the dawn of a new era: additive manufacturing allows us to create objects by programming and then printing them layer by layer. Think of printing a page on a dot-matrix printer, which delivers a multitude of color dots to a blank page. Imagine that this printer works in 3-D, printing one level on top of another, building a three-dimensional object, layer by layer.