The thin layers of the structure are held together by an inorganic binder, not the normal steel reinforcements that most buildings have. This allows for strength and design freedom not available before. The structure was designed using CAD/CAM software and then exported directly to the printer. Once printed, it only takes about 24 hours for the material to fully set. The process is also pretty environmentally sound, and if any of the building material remains unused, it can be recycled.