Crustacean is another in a series of asymmetrical mechanical drawings inspired by nineteenth century lithographs of industrial machinery. In this drawing are depictions of gears, pulleys, motors and drive belts, and random mechanical structures. The most basic design is intended to resemble a clock mechanism with pendulums and gears, but the drawing began to evolve into a quasi-living form. I began to think of the structure as a sea snail :the tractor tracks and suspension system are the foot of the snail, the searchlight and various related appendages are the antennae. Multiple layers link together to form an integrated mechanism.