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  2. 3D printing - Wikipedia

    en.wikipedia.org/wiki/3D_printing

    The technology used by most 3D printers to date—especially hobbyist and consumer-oriented models—is fused deposition modeling, a special application of plastic extrusion, developed in 1988 by S. Scott Crump and commercialized by his company Stratasys, which marketed its first FDM machine in 1992. Owning a 3D printer in the 1980s cost ...

  3. Selective laser sintering - Wikipedia

    en.wikipedia.org/wiki/Selective_laser_sintering

    An SLS machine being used at the Centro de Pesquisas Renato Archer in Brazil.. Selective laser sintering (SLS) is an additive manufacturing (AM) technique that uses a laser as the power and heat source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure.

  4. Laser cutting - Wikipedia

    en.wikipedia.org/wiki/Laser_cutting

    Newer laser machines operating at higher power (6000 watts, as contrasted with early laser cutting machines' 1500-watt ratings) are approaching plasma machines in their ability to cut through thick materials, but the capital cost of such machines is much higher than that of plasma cutting machines capable of cutting thick materials like steel ...

  5. Stereolithography - Wikipedia

    en.wikipedia.org/wiki/Stereolithography

    Stereolithography or "SLA" printing is an early and widely used 3D printing technology. In the early 1980s, Japanese researcher Hideo Kodama first invented the modern layered approach to stereolithography by using ultraviolet light to cure photosensitive polymers. [4] [5] In 1984, just before Chuck Hull filed his own patent, Alain Le Mehaute ...

  6. Laser engraving - Wikipedia

    en.wikipedia.org/wiki/Laser_engraving

    The laser diode, the primary component which excites a pulsed solid state laser, can easily cost one third of the machine itself and functions for a limited number of hours, although a good quality diode can last thousands of hours. A 3D image engraved in a glass cube, seen from various angles

  7. Lidar - Wikipedia

    en.wikipedia.org/wiki/Lidar

    Lidar may operate in a fixed direction (e.g., vertical) or it may scan multiple directions, in which case it is known as lidar scanning or 3D laser scanning, a special combination of 3-D scanning and laser scanning. Lidar has terrestrial, airborne, and mobile applications.

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