Three different printing methods

Layer by layer

PRO: The entire structure is printed. CON: Requires very large printers. The layer by layer method is used to 3D print entire houses on site, making the construction process much faster and cheaper than any other method. It requires a huge printer that can move about the entire layout, printing to the height required.

Modules

PRO: Easy to integrate. CON: Difficult to customise a house. The method allows the 3D printing of customised bricks, concrete sections, etc., and delivering them to a construction site. The Softkill company makes huge plastic sections that can be assembled in the construction site, no need for any welding or concrete making.

Freeform

PRO: Flexible design. CON: Slow process. Unlike the layer by layer method, freeform printers do not require an existing base. Robotic arms with welding torches add new material, as it is printed. The method involves flexible design, but is slower and more expensive than the other methods.