3D printers have been used in the past to print buildings and simple structures. The 3D Concrete Printer is another solution you can rely on to print houses with less waste. This soon-to-be fully automatic system uses sand to get the job done. According to the developers, the printing speed is “100 sq. m. and 3m height in 48 hours.”
These printers are sold as a kit, so you will have to assemble them yourself. They come in various models, some of which are ideal for building larger models in extreme conditions.