Ordinary printers used in daily life can print computer-designed flat items, and the so-called 3D printer working principle is basically the same, but the printing material is somewhat different, ordinary printer printing material is ink and paper, and 3D printer is equipped with metal, ceramics, plastics, sand and other "printing materials", is the real raw materials, printers and computers connected, through the computer control can be "printing material" layer by layer, and eventually the computer blueprint into a kind. In layman's parlance, a 3D printer is a device that can "print" out a real 3D object, such as printing a robot, printing a toy car, printing a variety of models, even food, and so on. The reason why it is commonly referred to as "printer" refers to the technical principle of the common printer, because the process of layered processing and inkjet printing is very similar.
This printing technology is called 3D Stereo printing technology. There are many different technologies in 3D printing. They differ in the way they are available, and in different layers to build the parts. 3D printing commonly used materials have nylon fiberglass, polylactic acid, ABS resin, durable nylon materials, gypsum materials, aluminum materials, titanium alloy, stainless steel, silver-plated, gold-plated, rubber-type materials.