3D printing (3DP) is a kind of rapid prototyping technology. It is a technology based on digital model file, which USES adhesive materials such as powdery metal or plastic to build objects by printing layer by layer.
3D printing is usually realized by digital technology material printer. The model is often used in the fields of mold manufacturing and industrial design, and then gradually used in the direct manufacturing of some products. Some parts have been printed using this technology. The technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, gis, civil engineering, firearms and other fields.
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