We've been using cement as a building material for thousands of years — but never quite like this. Andrey Rudenko of Minnesota used it in a custom 3-D printer to create a tiny castle in his backyard, layer by layer, and next, he plans to build a two-story house. He's not the first to attempt a cement 3-D printer, but this castle is easily the most impressive example of the technique yet. It puts down layers about three quarters of an inch wide and a fifth of an inch tall with remarkable precision, leaving a textured but solid surface.
The castle, pretty as it may be, was only a test run for his real project: building a house. "All interior walls, fireplaces, stairs, some interior elements... I have my own innovative design and I'm going to print with insulation," Rudenko told NBC News in an email. Even the roof will be printed. It needs to be in a warm, dry climate and, of course, things like doors and glass will have to be added, but he's confident it'll work. Let's just hope it's up to code.
First published August 27 2014, 11:33 AM