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The Liberator is the name we gave to the CEB press. It is the world’s first, open source, high performance – meaning 3-5 brick per minute – CEB press. It costs $1350 in parts and we are getting ready to produce it at about 8x lower cost than the competition. There is really nothing new about the CEB machine in terms of invention – except the economic model by which we are building the machine and deploying its production. Our work has been featured on BoingBoing and Wired Magazine blogs.
We went from prior art, to our design, to the prototype machine. When fed with soil dug up at Factor e Farm, the machine pressed with about 20 tons of force, and produced bricks that we estimate are 500 psi strong – or as hard as some rocks.