The process of creating three-dimensional objects out of plastic or other materials using a device similar to a printer.
3D-printing is the process of creating a three-dimensional object using a the same principles as printing with ink. Layers of plastic or other materials are slowly built up inside a device typically the size of a large desktop printer. 3D printing is a somewhat recent invention, but it has revolutionized the maker movement by making prototypes and models easy to make.