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* [http://www.3dprinterworld.com/article/3d-printing-greener-alternative-traditional-manufacturing 3D Printing a Greener Alternative to Traditional Manufacturing] - 3D Printer World
* [http://www.3dprinterworld.com/article/3d-printing-greener-alternative-traditional-manufacturing 3D Printing a Greener Alternative to Traditional Manufacturing] - 3D Printer World
* [http://www.techthefuture.com/technology/3d-printing-beats-mass-production-in-energy-efficiency/ 3D Printing Beats Mass Production In Energy Efficiency] - Tech the Future
* [http://www.techthefuture.com/technology/3d-printing-beats-mass-production-in-energy-efficiency/ 3D Printing Beats Mass Production In Energy Efficiency] - Tech the Future
* [http://www.united-academics.org/magazine/design-technology/3-d-printing-good-for-the-environment/ 3-D Printing Good For The Environment] - United Academics
* [http://www.ua-magazine.com/3-d-printing-good-for-the-environment/ 3-D Printing Good For The Environment] - United Academics
* [http://www.pachamama.org/blog/3d-printing-making-cheap-plastic-environmentally-sustainable 3D Printing: Making Cheap Plastic Environmentally Sustainable] - Pachamama Alliance
* [http://www.pachamama.org/blog/3d-printing-making-cheap-plastic-environmentally-sustainable 3D Printing: Making Cheap Plastic Environmentally Sustainable] - Pachamama Alliance
* [http://3dprintingindustry.com/2013/11/08/marble-ecodesign-marble-waste-3d-printing-gold/ Marble EcoDesign: Marble Waste to 3D Printing Gold] - 3D Printing Industry
* [http://3dprintingindustry.com/2013/11/08/marble-ecodesign-marble-waste-3d-printing-gold/ Marble EcoDesign: Marble Waste to 3D Printing Gold] - 3D Printing Industry

Revision as of 17:27, 19 December 2016

Source

Greenreprap.jpg

Megan Kreiger and Joshua M. Pearce (2013). Environmental Life Cycle Analysis of Distributed 3-D Printing and Conventional Manufacturing of Polymer Products, ACS Sustainable Chemistry & Engineering,1 (12), (2013) pp. 1511–1519. DOI: 10.1021/sc400093k Open access

Discussion on how 3D printing is green on Living on Earth - PRI's Environmental News Magazine - Listen

Abstract

With the recent development of the RepRap, an open-source self-replicating rapid prototyper, low-cost 3-D printing is now a technically viable form of distributed manufacturing of polymer-based products. However, the aggregate environmental benefits of distributed manufacturing are not clear due to scale reductions and the potential for increases in embodied energy. To quantify the environmental impact of distributed manufacturing using 3-D printers, a life cycle analysis was performed on three plastic products. The embodied energy and emissions from conventional large-scale production in low-labor cost countries and shipping are compared to experimental measurements on a RepRap with and without solar photovoltaic (PV) power fabricating products with acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA). The results indicate that the cumulative energy demand of manufacturing polymer products can be reduced by 41-64% (55-74% with PV) and concomitant emission reductions using distributed manufacturing with existing low-cost open-source 3-D printers when using <25% fill PLA. Less pronounced positive environmental results are observed with ABS, which demands higher temperatures for the print bed and extruder. Overall, the results indicate that distributed manufacturing using open-source 3-D printers has the potential to have a lower environmental impact than conventional manufacturing for a variety of products.

See Also

Method

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3D Print. Save the Planet.
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