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“Japan has some of the most demanding seismic requirements in the world. Seeing a government-approved two-story 3D printed reinforced concrete house completed here confirms that 3D construction printing is ready for projects that rely on structural precision and consistent quality, also in seismic areas,” commented Henrik Lund-Nielsen, Founder and General Manager of COBOD International. “The collaboration demonstrates how our technology handles complex geometry, varying climate conditions, and strict regulatory standards.”
Cornell research shows that underwater 3D printing can be used to build or repair ocean structures in place
3D printing with one of the world’s hardest Tungsten-based materials is now possible
Chinese scientists 3D print tiny items in half a second using holographic light fields
Indeed, this house was built from the ground up, relying heavily on a single 3DCP. Onocom notes (machine translation) that 3D printed buildings have typically been limited to small-scale or single-story structures. The successful fabrication of a fully seismic-compliant dwelling of two stories makes it even more notable. ‘Multifunctional wall’ segments, “molded in one step to create a three-layer structure that integrates design, structural frame, and facility space,” are said to drastically reduce on-site post-processing.
(Image credit: Onocom ) (Image credit: Onocom ) Last but not least, the project also confirmed the tolerance of 3DCP to variable weather and temperature conditions. COBOD says that the initial formwork for the house was printed at temperatures below 10 °C (50 °F), requiring heated mixing water to maintain printability. In contrast, the main house structure was completed in summer at a rather toasty 30–35 °C (86–95 °F). High environmental temperatures “shortened bucket life and required careful process control,” but these hurdles didn’t interrupt or impair the 3D printer -driven building process.
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Key considerations
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Reference reading
- https://www.tomshardware.com/3d-printing/SPONSORED_LINK_URL
- https://www.tomshardware.com/3d-printing/cave-inspired-3d-printed-japanese-home-touted-as-earthquake-resistant-two-storey-house-first-of-its-kind-to-be-granted-seismic-compliance-certificate#main
- https://www.tomshardware.com
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