WASP is planning to 3D print ultra-affordable houses for people

I still remember how amazed I was when I first saw someone create a 3D-printed wrench, but after seeing what the people at World’s Advanced Saving Project (WASP) are doing with 3D printers, I can’t believe something as laughably small as a wrench ever impressed me. WASP is planning to build a massive 40 foot tall 3D printer known as Big Delta, which the team behind the project claims will be able to 3D print ultra low-cost housing.