3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. Resin 3D Printer is an additive manufacturing process that belongs to the Vat Photopolymerization family. In Resin 3D Printer, an object is created by selectively curing a polymer resin layer-by-layer using an ultraviolet (UV) laser beam. The materials used in Resin 3D Printers are photosensitive thermoset polymers that come in a liquid form.