A Chinese R&D shop has 3D printed 10 buildings' worth of prefab slabs using enormous fused deposition modelling printers that extrude concrete.
The prefab slabs were printed in one day, and will be fitted together at the site itself. Each building's slabs cost about $5000.
Like their desktop counterparts, the construction-grade WinSun 3D printers use a fused deposition modeling (FDM) technology to deposit materials one layer at a time in a process that's similar to squeezing frosting from a pastry bag.
Using a CAD design as a template, a computer controls a mechanical extruder arm to lay down concrete, which is treated with special hardeners so that each layer is strong enough to support the next.
The buildings are constructed in parts inside a Yingchuang New Materials factory, one wall at a time. The pieces are subsequently joined together at a construction site.
3D printer constructs 10 buildings in one day from recycled materials [Lucas Mearian/Computerworld]
Gilles Retsin has been experimenting with 3D-printed design concepts, but he’s also been working with computational mereology to engage in large-scale discrete fabrication. Think of it like Tetris or LEGO: a set of prefabbed interlocking parts that can then be assembled by a robot programmed to create a specific shape.
Jimmy DiResta kept passing by a 1911 Chandler & Price letterpress sitting out in the rain. After buying it from the neglectful owner, he spent several years lovingly restoring it, eventually learning how to print with it.
Marble Lock Paul Myers of Opulence Mechanics designed and 3D printed this door lock. You can open the door only if you have a marble. I guess a gumball would would, too.
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