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3D printing, or additive manufacturing, is the construction of a three-dimensional object from a CAD model or a digital 3D model. [1] [2] [3] It can be done in a variety of processes in which material is deposited, joined or solidified under computer control, [4] with the material being added together (such as plastics, liquids or powder grains being fused), typically layer by layer.
3D printing, and open source 3D printers in particular, are the latest technology making inroads into the classroom. [ 158 ] [ 159 ] [ 160 ] 3D printing allows students to create prototypes of items without the use of expensive tooling required in subtractive methods.
Unsurprisingly, convincing muscle-car buyers to go for an expensive, high-tech six over a husky V-8 was a challenge, so the Sprint was a rare bird when new and virtually unobtainable today.
This technology of hot-melt inks printing layers of CMYK was a precursor to a 3D patent by Richard Helinski. A few years later (1993), the patent was licensed first by Sanders Prototype, Inc.,(Renamed Solidscape , Inc) a manufacturer of the first desktop Rapid Prototype printer in the industry, the Modelmaker 6 Pro.
3D printing, also known as additive manufacturing, has been posited by Jeremy Rifkin and others as part of the third industrial revolution. [ 17 ] Combined with Internet technology, 3D printing would allow for digital blueprints of virtually any material product to be sent instantly to another person to be produced on the spot, making ...
Stereolithography uses a high intensity light projector, usually using DLP technology, with a photosensitive polymer resin. It will project the profile of an object to build a single layer, curing the resin into a solid shape. Then the printer will move the object out of the way by a small amount and project the profile of the next layer.