Large manufacturing companies have used 3D modeling and printing for a few decades. (There are also plenty of places to simply download 3D models online.) The 3D printer brings the models to life, building an actual object from the computer drawing. This can be done with software or through the use of a 3D scanner. The first step in 3D printing is the creation of a model. However, other printers can create objects from a wider variety of materials, including metals, wood, concrete, and even chocolate or confectioners sugar. Most consumer-grade 3D printers produce objects in various forms of plastic. A 3D-printed object is exactly that - a three-dimensional, physical object. 3D printing involves a vastly different process than printing on a piece of paper with an inkjet printer.
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