A few weeks back I helped a friend construct a geodesic dome for an islamic art workshop at the V&A in London. There are various ways of triangulating a dome or sphere (I believe the Bucky method produced a dome entirely of equilaterals) and I was not responsible for the calculations in this instance but essentially we split the dome into six equal pentagons, five standing in a circle with outer most points touching (ala ring a ring o’ roses) and one on top connecting the top most points. All spaces between the pentagons are nice convenient equilateral triangles and the pentagons themselves can be triangulated into equal isosceles triangles.
Our dome was slightly squatty possibly due to the over engineering choice of material, namely some lengths of 4×2. This method can produce a much smoother, more spherical dome if using something light like bamboo but I rather like the more rugged, solid presence of this excursion.
Occasionally Architectural 
rbbadger
October 23, 2010
One of my uncles had built a home for himself which was a geodesic dome. I loved that house and was sad when they moved away and sold it. You had to be careful in the rooms on the upper floor, though. I ended up bonking my head on the walls more than once!
Trevor Taw
October 25, 2010
Thanks for the comment rb. Sounds fantastic, what a great experience.
I intend to build and live in a treehouse at somepoint in my life, I wonder if geodesic domes could be incorporated into that… Perhaps a collection of them at various sizes forming a small treehouse complex!
NJArtitecture
November 7, 2010
Love the video! Thanks for sharing đŸ™‚