The octagram is projected to the sphere surface. Triangles are halved with -X1 struts and FI struts are added to support  roofing materials. More FI struts can be added as required. As illustrated this 2 x 6 dome is 30 ft. across Base Perimeter edges, with apex height of 9 ft. Main Dome Struts are made from 10 and 12 ft lumber; Base Perimeter edges are 12 ft. This is a short dome but height can be increased to make steeper sides and more interior volume, or decreased for a shorter profile.



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zMake the paper model - print two copies of the pattern, cut out, bend on edges, and tape together z