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Helix 1
This helical structure is made of pentagonal and rhombic prisms. The supports are made of seven triangular prisms.
GEOMAG constructions: Helix 1, view 1
Helix 1, view 1
2475 pieces: 602 balls, 1327 rods, 78 pentagons, 392 squares, 76 rhombuses (12.47 kg)
GEOMAG constructions: Helix 1, view 2
Helix 1, view 2
Of course, the number of pieces required depends on how much the construction is extended or, in other words, on how many turns the helix describes:
 
  turns  balls  rods  pentagons  squares  rhombuses 
  132  266  20  84  18 
  292  626  40  189  38 
  452  986  60  294  58 
  612  1346  80  399  78 
  772  1706  100  504  98 
  932  2066  120  609  118 
  ...  ...  ...  ...  ...  ... 
  160 × n – 28  360 × n – 94  20 × n  105 × n – 21  20 × n – 2 
GEOMAG constructions: Helix 1, side view
Helix 1, side view