3D printed technology appeared in the mid-1990s. In fact, it is the latest rapid prototyping device using technologies such as light curing and paper lamination. 3D printing is a kind of rapid prototyping technology. It is a technology based on digital model files, which using powder metal or plastic and other bindable materials to construct objects by printing layer by layer.
The design process of 3D printing is as follows: firstly, it is modeled by computer-aided design (CAD) or computer animation modeling software, and then the built 3D model is “divided” into layer-by-layer sections, so as to guide the printer to print layer by layer
The standard file format for collaboration between design software and printer is STL file format. An STL file uses triangular surfaces to roughly simulate the surface of an object. The smaller the triangle surface, the higher resolution of resulting surface.
3D rapid prototype applications :This technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and other fields.
Materials for 3D printed: The commonly used materials for 3D technology are including nylon glass fiber, durable nylon material, gypsum material, aluminum material, titanium alloy, stainless steel, silver plating, gold plating and rubber materials.
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