Epoissonq sur Twitter : "De l' #opensource dans @Voiles_Voiliers avec le projet @lab_rev . #ocean #3DPrinting... Using 3D Printers To Generate Villages Of Houses. Rome wasn't built in a day, but a village of 10 houses created out of 3D printed concrete parts has been constructed in just one day in Shanghai, China. And the even better news? Each one only cost around $5000. Oh, and they’re partly made out of recycled waste, too. The company that built the structures, WinSun Decoration Design Engineering Co, spent years perfecting the system which allowed them to achieve this impressive feat. They used a pretty hefty 150 meter long, 10 meter wide and 6 meter deep printer to generate the concrete constituents, which were then assembled together into small but sturdy buildings.
The material used to construct the parts is a mixture of high grade cement, recycled construction waste and industrial waste, which is then reinforced with glass fibers. The software used to design the parts also allows for the addition of things like plumbing and windows which can be added on after the building is erected. Images via 3ders.org. Impression 3D : "Une révolution comparable à celle d’Internet" The upcycling network •Présentation / L'impression 3D rendra-t-elle l'Economie Circulaire ? 3D Printing: The Greener Choice. Newswise — 3D printing isn’t just cheaper, it’s also greener, says Michigan Technological University’s Joshua Pearce. Even Pearce, an aficionado of the make-it-yourself-and-save technology, was surprised at his study’s results.
It showed that making stuff on a 3D printer uses less energy—and therefore releases less carbon dioxide—than producing it en masse in a factory and shipping it to a warehouse. Most 3D printers for home use, like the RepRap used in this study, are about the size of microwave ovens. They work by melting filament, usually plastic, and depositing it layer by layer in a specific pattern. Free designs for thousands of products are available from outlets like thingiverse.com. Common sense would suggest that mass-producing plastic widgets would take less energy per unit than making them one at a time on a 3D printer. They conducted life cycle impact analyses on three products: an orange juicer, a children’s building block and a waterspout.
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