Once the data is loaded, the printer is taken to the site.
The printer lays down both sides of the walls in layers of rigid polyurethane. Cement is poured into the gap between the wall skins. This makes the walls strong enough to support the roof.
The single-storey house is completed with doors, windows and a roof. Finishing with these components took four months.
Furet added that it could be possible to reduce construction costs by a quarter in five years and by 40% in 10 to 15 years through economies of scale and as the 3d-print technology naturally becomes cheaper with time.
This is a development of the technique for emergency and prefabricated buildings we covered in 2016.