A SIMPLE LIGHT SCULPTURE
Swirling colors for long-exposure photos.
By Jared Bouck
I’ve always enjoyed long-exposure photography, but
sometimes the images can seem predictable. So I
decided to build some dynamic light sculptures that
would add effects, colors, and patterns to my photos. I put together this simple rig in an afternoon, and
a little trial and error taught me how to use it to create
a good variety of photographic results.
2. Mount the main arm and motor.
Place the medium gearmotor in the cradle, and
use zip ties to tightly secure it on top of the upright
(Figure D). This is the main drive motor that turns the
main arm, which is a balanced length of U channel.
Center the motor sprocket on the outside bottom
of the U channel and mark the channel between
sprocket teeth on opposite sides. Using a drill bit
that matches your screw size, drill 2 holes in the