3D Printing is a manufacturing method that uses additive processes. It consists of adding a lot of thin layers of a given material to build a three-dimensional object.

In order to create objects, 3D printers are following building programs based on topographical data compiled into 3D files. This way, 3D Printers are only adding (or turning solid) the material in the appropriate areas and piling up to create the volume of the object. Each 3D file is divided into slices and rebuild layer by layer.