DOME FORMULAS

First of all, you need this simple formula:

dome radius = strut length/strut factor

which is the same as:
strut length = dome radius * strut factor

Now all you need are the strut factors! 


Strut Strut factor Dome Sphere
A 1.05146 25 30
5-way connectors 6 12
4-way connectors 5 0

Strut Strut factor Dome Sphere
A .61803 35 60
B .54653 30 60
4-way connectors 10 0
5-way connectors 6 12
6-way connectors 10 20

Strut Strut factor 3/8  5/8  Sphere
A .34862 30 30 60
B .40355 40 55 90
C .41241 50 80 120
4-way connectors 15 15 0
5-way connectors 6 6 12
6-way connectors 25 40 80

Strut Strut factor Dome Sphere
A .25318 30 60
B .29524 30 60
C .29453 60 120
D .31287 70 120
E .32492 30 60
F .29859 30 60
4-way connectors 20 0
5-way connectors 6 12
6-way connectors 65 150

Strut Strut Factor Dome Sphere
A .19814743 30 60
B .23179025 30 60
C .22568578 60 120
D .24724291 60 120
E .25516701 70 120
F .24508578 90 120
G .26159810 40 60
H .23159760 30 60
I .24534642 20 30
4-way connectors ?? 0
5-way connectors 6 12
6-way connectors ?? ??

Strut Strut Factor Dome Sphere
A .1625672 30 60
B .1904769 30 60
C .1819083 60 120
D .2028197 90 180
E .1873834 30 60
F .1980126 60 120
G .2059077 130 240
H .2153537 65 120
I .2166282 60 120
4-way connectors ?? 0
5-way connectors 6 12
6-way connectors ?? ??