The principle and technology of 3D printing

The Yingtong printers used in daily life can print flat items designed by computers. The so-called 3D printers work on the same principle as Yingtong printers, but the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper, while 3D printers are equipped with different "printing materials" such as metal, ceramics, and plastic sand. It is real raw materials. After the printer is connected to the computer, the "printing materials" can be added layer by layer through computer control, turning the blue egg on the computer into a physical object. In layman's terms, a 3D printer is a device that can "print" real 3D objects, such as printing a robot, a toy car, various models, and even food, etc. The reason why it is commonly called a "printer" is that it refers to the technical principle of ordinary printers. Because the process of layer-by-layer processing is very similar to spray volume printing, this printing technology is called 3D stereoscopic printing technology.

There are many different technologies in 3D printing. The difference between them lies in the way available materials are used and the components are created in different layers. Commonly used materials for 3D printing include nylon glass fiber, nylon material, gypsum material, aluminum material, titanium alloy, stainless steel, silver-plated, gold-plated, and rubber-like materials.