THIS MAN 3D-PRINTED A HOUSE — AND IT COULD LAST 300 YEARS
He spent $500K on a machine that prints concrete walls layer by layer, kind of like icing a giant cake, but, you know... a house.
It’s faster, cheaper (up to 45% less), and strong enough to survive for centuries — plus you could move in within days instead of waiting forever.
Source: We Are Engineers



