Kamp C, a Belgian company, recently completed the construction of its first two-story 3D printing house by a large cement printer called bod2, according to the US media insider. < / P > < p > due to technical limitations, most 3D printing houses were single storey buildings. Therefore, the first two-tier 3D printing building has a breakthrough significance. < / P > < p > the two-story building has been printed for 15 days. The 3D printing house is three times stronger than the traditional rapid construction red brick house, and can save about 60% of materials, time and money without concrete. Once the machine starts and starts construction, it can operate completely on its own, just by monitoring the process on a nearby computer. < / P > < p > at present, the world’s first 3D printing community near the Mexican seismic belt is also under construction. It is understood that although the printing of the building took three weeks, as long as the process is proper, similar houses can be completed in two days.