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Icosahedron

by thakis, published

Icosahedron by thakis Mar 24, 2013

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Summary

An icosahedron in 238 bytes. This is all of it:

r = sqrt(3 / (1 + 2*sqrt(5)/5) - 1);  
for (j = [0, 180]) rotate([0, j, 0])  
  for (i = [0:4]) rotate([0, 0, i * 360 / 5])  
    for (k = [0, 1]) rotate([0, -atan(r) - 2*k*atan(r/2), 0])  
      rotate([0, 0, 180*k]) cylinder(1, 0, r, $fn=3);  

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