The Big Round Cubatron
The BRC is the world’s largest 3-dimensional full color dynamiclight sculpture. It is an array of lights 40 feet in diameter and 10 feet high. It consists of 28 spokes, each of which is 24
lights wide by 9 lights high. Each light is independently controllable to display any color and brightness level and the entire display can be updated 50 times per second. There are 6048 total lights (28 * 24 * 9) made of 18,144 LEDs. The BRC was funded by a Burning Man Art Grant.
The physical structure that holds up the lights consists of two pieces, a central mast, and a circular wall of poles. The lights are strung horizontally and from the central mast to the outer posts:
The central mast is a 10 foot 4×4 inch wood pole standing vertically in the center. It is supported by 1/8″ steel cables that run from the top of the mast to the top of each outer pole.
The poles around the circumference are 1-3/8″ diameter pipe and 10 feet high. They are pre-assembled into 14 “squares” along with some 3/4″ EMT pipe to keep the squares together The squares are held to the ground in each corner by rebar stakes. The tops of the squares are pulled tight and held down with rope and rebar stakes.
The light string wires are attached to the poles at 10 inch height intervals using plastic wire ties and paper clips. The bottom string of lights starts about 3 feet off the ground.
A small viewing tower was located to one side of the sculpture. It was built from some scaffolding two tiers high (10 ft), allowing people to view the sculpture from an eye level of around 15 feet high.
check the project page for more info…
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