Harnett Dome, Drury, New Zealand
spheroid or oblate ellipsoid
This 3v icoshedron was squashed in the aspect ratio
of 0.618 (the golden ratio). The icosa face is shown, and the yellow shows
that part of this 3v oblate ellipsoidal icosahedron which was used to build
the Harnett Dome at Drury, near Auckland, New Zealand.
24m (80ft) diam.3v ellipsoidal oblate icosahedron,
squashed to a ratio of 0.618, which did not use a larger size of timber
than 100x50 (2"x4" as they call it in the USA)
spheroid or prolate ellipsoid
These two 3v ellipsoids, of 7m & 6m diameter
respectively, are simply stretched spheroids. They are both truncated in
different ways, with different openings.
This 3v icosahedron was stretched and then rotated.
It was truncated along a diagonal to allow for a mezzanine in the high
end. The original icosa face is also shown. This was the basis of the Wilson
dome at Pukekohe, near Auckland, New Zealand.
17mx12m 3v prolate ellipsoidal icosahedron
An 11m (36 ft) diameter four frequency (4v) super-spheroidal
icosahedron, rotated to give the mid-point of the original 1v icosa face
as the zenith, as used for Mark, Jody & Indigo Verhoeven's dome home
in Umina, NSW, Australia. The blue outlines the original icosa face, sub-divided
to give a 4 v icosahedron. This dome was built using 75x50 timber (2"x3")
The picture shows a 3v oblate super-ellipsoidal
icosahedron at the end of "Dome Day". The dome was erected using the pole
and lifting blocks with wire and adjusters. This dome was built in April
1998 for Ruth Sussman of Umina, New South Wales, Australia.
Free form domes are possible with a bit of
imagination and some patience in the design phase.
Free form amorphous
flow geodesic structure, Whangarei, N.Z.,theatre/restaurant.
Free form amorphous
flow of geodesic structure.
picture shows a free form amorphous flow of geodesic structure combined
with a longitudinally cut egg, giving an elliptical floor plan with the
space spilling out one side. Thus free form, ellipsoidal and fragments
combine - a far cry from the 3v spheroid which seem to dominate peoples
thinking when it comes to geodesic domes.
Please submit all questions and comments to
Some people are dome purists - their dome must
be a complete dome, the more spherical the better. While I appreciate their
sentiment, as I can also appreciate the sentiments of those whom must live
in a box, I believe there is a place for chunks of dome fragment. This
picture is of the Cameron Dome at Mystery Creek near Hamilton, NZ, and
is two dome fragments separated by a clerestory. The higher fragment has
a mezzanine floor.
The house shown below is fragments of a relatively
simple dome fused together with a flow of triangular panels over the connecting