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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.
In May 2013, the American company Defense Distributed published plans for the first complete firearm that could be downloaded and reproduced by anyone with a desktop 3D printer. [ 4 ] [ 5 ] Defense Distributed also designed the first generation of 3D-printed AR-15 –type rifle receivers and magazines. [ 6 ]
Come and Take It: The Gun Printer's Guide to Thinking Free is an autobiographical book written by American gun rights activist, author and crypto-anarchist, Cody Wilson in 2016. The book describes Wilson's decisions behind wanting to create the world's first 3D printed gun , the Liberator , and the formation of his company Defense Distributed ...
Some important 3D printer metrics include: Print technology: 3D printing processes encompasses a variety of methods which each have their own unique challenges. Length of production run and support: 3D printers often require adjustments and parts replacement. A long production run often means that spare parts are also available.
Josef Průša was a core developer of the RepRap project who had previously developed a PCB heated "print bed". He adapted and simplified the RepRap Mendel design, reducing the time to print 3D plastic parts from 20 to 10 hours, changing to the use of two Z-axis motors to simplify the frame, and including 3D printed bushings in place of regular bearings.
The Liberator is a 3D-printable single-shot handgun, the first such printable firearm design made widely available online. [2] [3] [4] The open source firm Defense Distributed designed the gun and released the plans on the Internet on May 6, 2013.
Andrea Sneiderman was convicted of 9 counts of perjury following the murder of her husband, Rusty. Andrea Sneiderman was sentenced to 5 years in prison in August 2013. [10] Sonya Smith is currently serving life plus 30 years (the maximum punishment) for the abuse and murder, in collaboration with her husband Joseph, of their eight-year-old son ...
Each object, originating from 3D scan data provided by their community, is optimised for 3D printing and free to download on MyMiniFactory. Through working alongside museums, such as The Victoria and Albert Museum [172] and private collectors, [173] the initiative serves as a platform for democratizing the art object.