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If you can't tell, already, I'm enamored of geodesic constructs. It is my hope that these deviations will inspire others. Physicist/geometer, -Taff _________________________________ If you ever need help with the geometry of geodesic domes (or spheres,) there is help available: Geodesic Help Group (Google Group) |
TaffGoch
Physicist/geometerNewest Deviations
Curved-Fold Cardboard Geodesic Dome
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Starweave - Icosa
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Tensegrity 2v{1,1} Double-Layer - Ice
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Tensegrity 2v{1,1} Double-Layer - Hot
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Tensegrity 2v{1,1} Double-Layer - Fire
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Tensegrity 2v{1,1} Double-Layer - Cold
TaffGoch
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Bucky's 60-Strut Tensegrity Sphere
TaffGoch
1
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Nexorades pentagon scale - ARCS
TaffGoch
3
1
Nexorades pentagon scale - MORE
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2
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Rotegrity - Belgium
TaffGoch
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Nexorades - Pentagon Scale
TaffGoch
0
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Rotegrity 3v{0,3}
TaffGoch
1
1
Rotegrity 3v{1,2}
TaffGoch
2
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Rotegrity 2v{0,2}
TaffGoch
0
3
Rotegrity 2v{1,1}
TaffGoch
2
1
Rotegrity 1v{0,1}
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1
1
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Activity
Curved-Fold Cardboard Geodesic Dome
Geodesic dome, composed of curved-fold cardboard struts • See original dome, at the link:
srchlab - Curved-Fold-Dome
(Plenty of photos)
Original dome diameter: 7 meters • Such a dome can be made, instead, of sheet metal, assembled with pop-rivets
SketchUp 3D model available • 3D Warehouse: Curved-Fold Cardboard Geodesic Dome • Patterns for struts included • Four strut definitions • The design of the strut "end flaps" allows for construction without hubs
srchlab - Curved-Fold-Dome
(Plenty of photos)
Original dome diameter: 7 meters • Such a dome can be made, instead, of sheet metal, assembled with pop-rivets
SketchUp 3D model available • 3D Warehouse: Curved-Fold Cardboard Geodesic Dome • Patterns for struts included • Four strut definitions • The design of the strut "end flaps" allows for construction without hubs
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Starweave - Icosa
Geodesic weave • Icosahedron symmetry • Geodesic class: I • Frequency: 1v • Simplest of the icosahedral "starweaves" • Only two different segment lengths required • All segments lie on "great circles"
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deviantID
TaffGoch
Physicist/geometer
Artist
Artist
United States
mann-of-lamancha.deviantart.co…
I had not seen your study, but I do, personally, take full advantage of components (as opposed to groups,) because of the file-size savings.
It should be common knowledge, since it's in the "SketchUp Users Guide," but many don't read it (or, even, know about it.)
-Taff
Yup, I didn't know about it. Thanks
The only convex polyhedra that can be constructed of equilateral triangles are the tetrahedron, octahedron and icosahedron. To produce greater complexity (and more-closely approximate a sphere,) irregular triangles must be introduced. If the solid surface is allowed both, concave and convex regions, then Lobel frames, employing equilateral triangles, can be a (rather odd) solution:
3dwarehouse.sketchup.com/model…
I wasn't necessarily thinking of equilaterals and should have said fewer regular shapes. I think in years past I had found those tetra's, octa's and iso's but due to senility or an early case of alzheimer's I couldn't find any tutorials for the past couple of weeks, except that link I mentioned. More exactly, I was thinking of Epcot's Space Ship Earth which, in my mind's eye, I thought was made from two or three regular triangles reiterated to make a sphere. Imagine my embarrassment when I just looked it up (having only now remembered it's name) and found it actually has a lot of "fudging."
As a matter of fact, I think I just remembered a previous search for geodesic tutorials that I found by looking up "soccer ball" so I'll try that now...
My apologies if I was a bother and my thanks for your help.
3dwarehouse.sketchup.com/model…