The 3, 4, and 5 frequency Kruschke Icosahedral domes

Dome geometry modifications provide coplanar vertices at convenient cut off points located at ground level...see also
The dome base is level with the ground/foundation. In most cases there are fewer varieties of strut (edge) types (lengths), but triangles are more visibly different, compared to conventional geometry (Class 1 Method 1 in Hugh Kenner's Geodesic Math) that gives more uniform triangle dimensions. The 3, 4, and 5 frequency icosahedral domes are presented here.



3 frequency dome





3 frequency Edge Zenith dome (rotated 31.7°)







A family building a 20ft. GD3 EZ



4 frequency dome







4 frequency dome rotated 31.7° makes a Hexagon Zenith.
Half-triangles on the lower level make the flat base.





5 frequency dome






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