### Four
frequency domes

#### The main focus of the designs shown on this site is towards an ecological
and economical way to build. I tried a few variation on edges and panels types
as applied to different frequencies or dome types. On this page you see an
example of a strut made out of 4X4 (could also be 2X4 or 2X3) as applied to a
four frequency icosahedron with parallel tropics. A four frequency dome can be
used to make an efficient capsule-house. As frequency goes up, edge length goes
down for a given diameter. With an edge length of about 4 to 5 feet, this frame
give up to 1000 square feet of floor area distributed on two floors. With such
short edge lengths and compactness, this shape is a prime candidate for building
an economical yet spacious house.

#### Here are a few example of how this f4 dome can be used. It can be cut into
three slices or sub-assemblies namely, 3/8, 1/2 and 5/8, any of which can be
mounted on a 20-sided cylindrical volume forming a ground level. This dome is
called a "parallel tropic" variety which means that, just like the
earth, it's two tropics and it's equator, where floors are installed, are
parallel to each other.

#### Choosing the right frequency and partition is a basic step in dome design.
It influences complexity of fabrication and usability. There is no gain in going
to far with high frequency. Most "dome-house" are 3 frequency because
it is so simple that way and their size can vary easily from 20 to 50 feet in
diameter.Nonetheless, some higher frequency dome, when matched with the right
pre-fabrication technique, can prove to be a good choise like this 5 frequency
dome which give a well balanced mid-sized house of 32 feet of diameter.

#### An efficient warehouse can also be built as a four frequency dome using
struts of about 8 feet long and plywood connectors. Here, 2 X 10 are used.

##### All drawings, photographs, texts and technologies shown on this site are
the exclusive property of Guy Massicotte.

##### Tous les dessins, photographies, textes, et technologies présentés
sur ce site sont la propriété exclusive de Guy Massicotte.

##### © Guy Massicotte, jan. 1997