Wednesday, April 23, 2014
3D Printers Create Instant Housing for Poor in China
These units are very simple and primitive, but offer the advantages of being incredibly inexpensive, and using recycled waste materials for a significant portion of the concrete mix. And projects like this help move the technology forward to the point where more involved construction projects can soon be expedited with similar techniques.
Hunter Communications Original News Source:
Link to article:
10 Completely Printed 3d Houses
Excerpt: "Back in 2011, University of Southern California Professor Behrokh Khoshnevis said new technology will soon allow massive 3D printers to build entire multi-level houses in under a day. A group of 3D printed houses, 200 m2 each, recently appears in Shanghai, China. These building were created entirely out of concrete using a gigantic 3D printer, and each costs only 30,000 RMB ($4,800). The company behind these 3D printed building, Shanghai WinSun Decoration Design Engineering Co, said it has for years been working on developing the system and its materials. The company owns 77 national patents of construction materials, such as glass fiber reinforced gypsum and special glass fiber reinforced cement.
While Hobbyist models of 3D printers are currently available for only a few hundred dollars and lets users feed plastics and polymers into a machine, the company takes this technology to a bigger level. Using concrete, instead of plastic, WinSun wants to revolutionize the way homes and other structures are built.
WinSun's 150(L) x 10(W) x 6.6(H) m gigantic 3D printer is capable of printing entire building within hours. The 'ink' it used is based on high-grade cement and glass fiber. Like traditional 3D printers, the system carefully spills out those materials layer by layer, consistently building upward.
Using computer and 3D modeling software, the designs of the building can also take into account additions like insulation materials, plumbing, electrical lining and windows, which can then be easily outfitted once the rest of the structure is solid and standing.
In addition, it is very impressive that the printing material is recycled construction waste, industrial waste and tailings. WinSun plans to build 100 recycling factories in the country, one in every 300km, to collect and transform the waste into materials for 3D printing through special handling, processing and separation technology. 'There will not be any waste from the construction of new buildings.' said WinSun CEO Ma YiHe. WinSun expects 3D printing will save construction companies up to 50% on the cost."