To understand the answer you must first understand the question… Really we should first take a look at what might be considered the base technologies in the “realities” world. Before the the term, Mixed Reality, came up in what some assume might have been concocted in a marketing meeting we primarily talked about two other technologies.
3D printing is the process of creating a three-dimensional object by adding many layers of material together. This process is performed by a computer controlled machine commonly called a 3D printer. This article will primarily be discussing the Fused Deposition Modeling(FDM) method of 3D printing. Most FDM printers will heat up plastic and push it out from a nozzle. This process is called extruding.