A 3D printer is a peripheral device that uses the method of layer-by-layer creation of a physical object using a digital 3D model. 3D Printing (3DP) - similar to SLS technology, only here does not use melting: the object is formed from powder material by gluing, using inkjet printing to apply liquid glue. This technology allows you to produce color modeling by adding dyes to the glue (directly at the time of printing), or by using several printheads with colored glue.