Helix 3
An octotetrahedric quadruple helix of pitch 15 around a structure of 26 levels with a plan shaped as a five-pointed star. For each turn of each helix five of fifteen modules are attached to the central support:
Helix 3
4841 pieces: 1092 balls, 3042 rods, 27 pentagons, 680 squares (25.01 kg) 
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Helix 3, detail
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Helix 3, plan of the support
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|
|
helices
|
turns
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balls
|
rods
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pentagons
|
squares
|
|
1
|
1
|
400
|
1025
|
16
|
395
|
|
1
|
2
|
780
|
2025
|
31
|
785
|
|
1
|
3
|
1160
|
3025
|
46
|
1175
|
|
2
|
1
|
480
|
1270
|
16
|
395
|
|
2
|
2
|
9400
|
2520
|
31
|
785
|
|
2
|
3
|
1400
|
3770
|
46
|
1175
|
|
3
|
1
|
560
|
1515
|
16
|
395
|
|
3
|
2
|
1100
|
3015
|
31
|
785
|
|
3
|
3
|
1640
|
4515
|
46
|
1175
|
|
4
|
1
|
640
|
1760
|
16
|
395
|
|
4
|
2
|
1260
|
3510
|
31
|
785
|
|
4
|
3
|
1880
|
5260
|
46
|
1175
|
|
...
|
...
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...
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...
|
...
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...
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|
m
|
n
|
(300+80m)n+20
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(750+250m)n+305m
|
15n+1
|
390n+5
|
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Similar helices of pitch 10 at Helix 2
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Similar helices of pitch 18 at Helix 4