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written by Rene K. Mueller, Copyright (c) 2005, 2006, 2007, last updated Tue, January 29, 2019
Octahedron |
- Uniform Polyhedron: U5
- Platonic Solid
- Platonic Element: Air
- Vertices: 6
- Edges: 12
- Faces: 8
- Wythoff symbol: 4|2 3
- Symmetry Group: octahedral
- Vertex Configuration: {3, 3, 3, 3}
- Dual: cube
- V: s3 / 3 * √2
- A: s2 * 8 / 4 * √3
- rinner: s / 6 * √6
- router: s / 2 * √2
-
- vertices/connectors: 5
1V Octahedron Dome Construction Map |
- edges/struts & bending angles (αstrut):
- faces: 4 (3-sided)
- A-A-A x 4 (60.00°, 60.00°, 60.00°)
- diameter: 2.000, radius: 1.000
- height: 1.000 or 50.00% of diameter
Geodesic 1V Octahedron Dome (Human is 170cm/5'7") |
- vertices/connectors: 13
- 4 x 3-way
- 5 x 4-way
- 4 x 6-way
2V Octahedron Dome Construction Map |
- edges/struts & bending angles (αstrut):
- A x 16: 0.76537 (22.50°)
- B x 12: 1.00000 (30.00°)
- total 28 struts (2 kinds)1)
- strut variance 30.7%
- faces: 16 (3-sided)
- A-A-B x 12 (49.21°, 49.21°, 81.57°)
- B-B-B x 4 (60.00°, 60.00°, 60.00°)
- 2 kinds of faces2)
- diameter: 2.000, radius: 1.000
- height: 1.000 or 50.00% of diameter
1) strut lengths sorted by 1/10'000th or +/-0.00005 exact
2) clock wise (cw) and counter clock wise (ccw) orientation neglected
Geodesic 2V Octahedron Dome (Human is 170cm/5'7") |
- vertices/connectors: 25
- 4 x 3-way
- 9 x 4-way
- 12 x 6-way
3V Octahedron Dome Construction Map |
- edges/struts & bending angles (αstrut):
- A x 16: 0.45951 (13.28°)
- B x 20: 0.63246 (18.44°)
- C x 24: 0.67142 (19.62°)
- total 60 struts (3 kinds)1)
- strut variance 46.1%
- faces: 36 (3-sided)
- A-A-B x 12 (46.51°, 46.51°, 86.98°)
- B-C-C x 24 (56.20°, 61.90°, 61.90°)
- 2 kinds of faces2)
- diameter: 2.000, radius: 1.000
- height: 1.000 or 50.00% of diameter
1) strut lengths sorted by 1/10'000th or +/-0.00005 exact
2) clock wise (cw) and counter clock wise (ccw) orientation neglected
Geodesic 3V Octahedron Dome (Human is 170cm/5'7") |
Next Page >>
Content: - Page 1: Table of Content, Changes
- Page 2: Introduction, Origin of the Geodesic Dome, Geodesize: Triangulate & Normalize, Procedure & Evolution of a Subdividing Triangle ...
- Page 3: Overview of Variants, Numerical Overview, Amount of Struts vs. Strut Variance, Amount of Struts vs. Strut Types ...
- Page 4: The Icosahedron, 1V/L1 2/3 Icosahedron Dome, 2V/L2 Icosahedron Dome, 3V 4/9 Icosahedron Dome ...
- Page 5: 5V 7/15 Icosahedron Dome, 5V 8/15 Icosahedron Dome, 6V Icosahedron Dome, 2V.3V Icosahedron Dome ...
- Page 6: 7V 10/21 Icosahedron Dome, 7V 11/21 Icosahedron Dome, 8V Icosahedron Dome, L4 Icosahedron Dome ...
- Page 7: The Octahedron, 1V/L1 Octahedron Dome, 2V/L2 Octahedron Dome, 3V Octahedron Dome
- Page 8: 4V Octahedron Dome, L3 Octahedron Dome, L3 1/4 Octahedron Dome, L3 5/8 Octahedron Dome
- Page 9: 5V Octahedron Dome, 6V Octahedron Dome, 2V.3V Octahedron Dome, 3V.2V Octahedron Dome
- Page 10: 7V Octahedron Dome, 8V Octahedron Dome, L4 Octahedron Dome, L4 7/16 Octahedron Dome, L4 9/16 Octahedron Dome ...
- Page 11: 9V Octahedron Dome, 3V.3V Octahedron Dome, 10V Octahedron Dome, 2V.5V Octahedron Dome, 2V.5V Octahedron Dome ...
- Page 12: The Cube, Preparing the Cube, 1V/L1 Cube Dome, 2V/L2 Cube Dome, 3V Cube Dome, 4V Cube Dome, L3 Cube Dome ...
- Page 13: 5V Cube Dome, 6V Cube Dome, 2V.3V Cube Dome, 3V.2V Cube Dome, 7V Cube Dome
- Page 14: The Cuboctahedron, Preparing the Cuboctahedron, 1V/L1 Cuboctahedron Dome, 2V/L2 Cuboctahedron Dome ...
- Page 15: 5V Cuboctahedron Dome, 6V Cuboctahedron Dome, 2V.3V Cuboctahedron Dome, 3V.2V Cuboctahedron Dome ...
- Page 16: The Truncated Octahedron, Preparing the Truncated Octahedron, 1V/L1 Truncated Octahedron Dome ...
- Page 17: The Rhombicuboctahedron, Preparing the Rhombicuboctahedron, 1V/L1 3/8 Rhombicuboctahedron Dome ...
- Page 18: Building Models, 3V 5/9 Icosahedron Model, 2V Icosahedron Model, 4V Icosahedron Model, 2V/L2 Cuboctahedron Model ...
- Page 19: Real Life Application, Options, Connectors, Separate Functions, Cover, 4/8 Sphere Cover Calculator ...
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