tracy test
This calculator is to be used with the Standard 1/2" Sonostar geohubs ONLY. If you are using Megahubs, use the Megahub calculator.
All the lengths of pipe for the triangles that make up a geodesic dome are not the same. There are trigonometric equations used to calculate the different lengths, but to make it easy, we've incorporated all that into the simple calculator on this page. First, on this page, choose the complexity of the dome you want to build. If you don't know what 'frequency' means, or the difference between a '3V' and a '6V', go to the FAQ's page and that will explain it. Once you get to the next page, all you do is put the radius (not the diameter) of the dome you want to build into the open square, and then hit the 'calculate' button next to it. Below it, you'll see all the lengths for any frequency 2, 3, 4, 5, or 6 dome you want to build.
* Please note that in calculating the lengths of the struts, 2.28 inches has ALREADY been deducted to account for the width of the standard size Sonostar geohubs.
- 2V Dome
- 3V 3/8 Dome
- 3V 5/8 Dome
- 4V Dome
- 5V 3/8 Dome
- 5V 5/8 Dome
- 6V Dome
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Blue |
35 |
| B |
- |
- |
Yellow |
30 |
| 4 Star base hardcore geohub |
10 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
10 |
| Diameter |
- |
Dome Calculator for 2V
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Yellow |
30 |
| B |
- |
- |
Blue |
40 |
| C |
- |
- |
Red |
50 |
| 4 Star base hardcore geohub |
15 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
25 |
| Diameter |
- |
Dome Calculator for 3V 3/8
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Yellow |
30 |
| B |
- |
- |
Blue |
55 |
| C |
- |
- |
Red |
80 |
| 4 Star base hardcore geohub |
15 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
40 |
| Diameter |
- |
Dome Calculator for 3V 5/8
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Yellow |
30 |
| B |
- |
- |
Red |
30 |
| C |
- |
- |
Blue |
60 |
| D |
- |
- |
Green |
70 |
| E |
- |
- |
Purple |
30 |
| F |
- |
- |
Orange |
30 |
| 4 Star base hardcore geohub |
20 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
65 |
| Diameter |
- |
Dome Calculator for 4V
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Yellow |
30 |
| B |
- |
- |
Blue |
30 |
| C |
- |
- |
Red |
60 |
| D |
- |
- |
Purple |
70 |
| E |
- |
- |
Green |
70 |
| F |
- |
- |
Orange |
80 |
| G |
- |
- |
Pink |
35 |
| H |
- |
- |
Tourquoise |
30 |
| I |
- |
- |
Brown |
20 |
| 4 Star base hardcore geohub |
25 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
120 |
| Diameter |
- |
Dome Calculator for 5V 3/8
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Yellow |
60 |
| B |
- |
- |
Blue |
60 |
| C |
- |
- |
Red |
120 |
| D |
- |
- |
Purple |
120 |
| E |
- |
- |
Green |
120 |
| F |
- |
- |
Orange |
120 |
| G |
- |
- |
Pink |
60 |
| H |
- |
- |
Tourquoise |
60 |
| I |
- |
- |
Brown |
30 |
| 4 Star base hardcore geohub |
25 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
265 |
| Diameter |
- |
Dome Calculator for 5V 5/8
|
Length (inch) |
Length (cm) |
Color |
Strut Count |
| A |
- |
- |
Yellow |
30 |
| B |
- |
- |
Blue |
30 |
| C |
- |
- |
Red |
60 |
| D |
- |
- |
Purple |
90 |
| E |
- |
- |
Green |
30 |
| F |
- |
- |
Orange |
60 |
| G |
- |
- |
Pink |
130 |
| H |
- |
- |
Tourquoise |
65 |
| I |
- |
- |
Brown |
60 |
| 4 Star base hardcore geohub |
30 |
| 5 Star hardcore geohub |
6 |
| 6 Star hardcore geohub |
160 |
| Diameter |
- |
Dome Calculator for 6V
