29 May '14, 12pm

Man Builds Concrete 3D Printer in His Garage

Man Builds Concrete 3D Printer in His Garage

This is a really cool project, but how sturdy could those pieces possibly be? I can’t imagine the concrete is very strong when printed in layers like that. Unless he plans on filling the spaces in between the sidewalls I feel like you could demolish the walls with your bare hands using little effort. The big benefit from printing would be from how much less concrete you would have to use since you can do the same thing by filling wood molds of each piece you need to make. The printed concrete is essentially the wood mold you would make. Yes, it would be easier printing complex shapes that would be hard to reproduce with wood, but most thing can be broken down into simple parts. I just don’t see this being cost or time beneficial in most cases. Either way, it is great to see creative thinking at work. I don’t know a lot about concrete in general so I may be completely wrong...

Full article: http://hackaday.com/2014/05/29/man-builds-concrete-3d-pri...

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