3D printing technology (English: 3D printing), a kind of rapid prototyping technology, which is based on a digital model file, using a bondable material such as powder metal or plastic to construct an object by layer-by-layer printing technology. In the past, it was often used to make models in the fields of mold manufacturing and industrial design while now being used for the direct manufacture of some products. In particular, some high-value applications (such as hip joints or teeth, or some aircraft parts) already have parts printed using this technology. "3D printing technology" means the spread of the technology.
3D printing technology is usually used a digital technology material printer. The output and sales of such printers have grown tremendously since the 21st century, and their prices are declining year by year.
The jewellery, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields are all used
3D printing technology appeared in the mid-1990s and is actually a rapid prototyping device that uses technologies such as photocuring and paper lamination. It works in the same way as a normal printerwhich is equipped with "printing materials" such as liquid or powder. After connecting with the computer, the "printing materials" are stacked by computer control, and finally the blueprint on the computer is turned into a real object. This technology is now used in many areas, and people use it to make clothing, architectural models, cars, chocolate desserts and more.