3 Dimensional printing is the process of making three-dimensional solid objects from a digital model. 3 Dimensional Printing is a process under development at MIT for the rapid and flexible production of prototype parts, end-use parts, and tools directly from a CAD model. 3D printing is achieved using additive processes, where an object is created by laying down successive layers of material. 3D printing is different from traditional machining techniques as they mostly rely on the removal of material by drilling, cutting, etc.

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