3D printing or additive manufacturing( AM) refers to various processors for printing a 3-dimentional object primarily additive processes are used, in which successive layer of material are laid down under computer control. These object can be of almost any shape or geometry, and are produced from a 3D model other electronic data source. A 3D printer is a type of industrial machine.

General principles used in 3D printing, 3D models can be created with a CAD package or via 3D scanner. The manual modeling of process preparing geometric data for 3D computer graphics is similar to plastic art such as sculpting. 3D scanning is a process of analyzing and collection digital data on the shape and appearance of real object can then be produced. Both manual and automatic creation of 3D printable models is difficult for average consumer. This is why several 3D printing marketplaces have emerged over the last years.

Application of 3D printing are in the fields like product development, data visualization, rapid prototype and specialize manufacturing .The technology is also expanding toward field like job production, industrial design, toys industries, engineering designs, automotive designing , dental , military etc.

Most recent update in 3D printing use is now expanding towards space and aeronautics, where some components of satellite will be replaced by printed component on the same place; this means astronauts can now print any component of satellite in space with help of highly advance 3D printer.

References: Wikipedia ,Journals ,informative websites

Shrut Kirti Nandan
MBA-IT
IIIT Allahabad