How Do You Build A Concrete Geodesic Dome?
The geodesic dome, designed by Buckminster Fuller in the early twentieth century, is one of the most efficient homes ever devised. Construction of a basic concrete dome is considerably less expensive, and takes less time to build, than a conventional home. Clear a 314-square-foot area for the dome. Preferably the ground should be concrete. Cut the electrical conduit pipe to the lengths listed in Things You’ll Need, since the pipe is sold in 10-foot-long pieces. Flatten all of the ends with the arbor press to a depth of 2 inches. Align the flattened ends so that they are at the same angle. Bend each end to between 9 and 11 degrees, in the same direction. It should have a “C” shape to it when done. Using the drill, place a centered hole in each flat part of conduit to accommodate the 5/16 bolts. Label all the electrical conduit struts A, B or C (A is 3.5 feet, B is 4 feet and C is 4.1 feet). Lay out the bottom ring of struts, according to the diagram, in a C, C, B, C, C, B pattern. Place
