Instructables
video Randome emergency geodesic shelter
For the average person it means you can create a shelter structure easily and at little cost. You won’t need to use a geodesic calculator or figure out strut bend angles or even worry about making a cover. It’s also a great project for people of all ages, introducing some science notions that are easy to understand.

If you are wondering what spacing to use between shapes, don’t: any section of the surface of the dome has the same curvature, whether on top, on the sides or at the base. That means the spacing of any Randome shape is not critical. The RanDome is put together intuitively, therefore you roughly calculate the placement of each shape or vertex element.  RanDome is a play on the word “random” for that reason.

http://vimeo.com/33234090
randomeshelter (author) 7 months ago

Formula:

For a hemisphere-

2.4 A / a = N

Big 'A' is the area of the dome footprint.

Little 'a' is the area of the vertex element, independent of shape (circle, square, etc.)

N is the number of elements.

The constant allows for a 20% overlap of the elements.

What kind of experience have you had with this dome and wind?
Strength is a function of material, fasteners and anchoring. One Randome is on the coast of Maine. It is 0.040 aluminum. Wind and snow, so far, have left it completely intact.
randomeshelter (author)  randomeshelter1 year ago
It was built in 2004.
dome_head1 year ago
Clever design. The cones could be mass produced and stacked up for compact shipping and storage. Some cones could be clear for windows, modified with screened holes for ventilation, or made from flexible solar cell sheets with built-in LED lighting. Foam board cones would insulate. A simple ring from pvc or emt conduit attached to the base would add great rigidity to the entire structure. No internal struts or framework needed. No pesky triangles with weird dimensions and complicated strut connectors. Shelter reduce to its most basic element, a membrane between inside and outside. Simple and beautiful!
rimar20002 years ago
Very interesting!