The process that the mechanical movement of our scale model rhino was worked out is pretty amazing, if we do say so ourselves. Footage of a good side view of a white rhinocerous in full gallop was looped so it would repeat the movement over and over. This was imported into a computer in 'Lightwave'- a three-dimensional, computer animation program. Analyzing rhinocerous skeleton references gave us exact placement of pivot points, and an animated overlay of an entire computer-simulated galloping rhino mechanism -chaindrive and gears included- was rendered in Lightwave, overlaying this looped real footage cliip. This computer animated mechanism was printed out at the scale of our new, enlarged scale-model rhinocerous; the parts were machined to match the blueprints, and the real running mechanism was assembled.

For the outer skin of our mechanical rhino- the model was sculpted in oil clay, molded, and a core was created inside the mold to carefully control the thicknesses of the skin so it would mate up to our mechanism. A very pliant, softened silicone rubber skin -to give the rhino a very organic sense of weight and movement- was cast. Intermediary vacum-formed core pieces were mounted onto the mechanism to lightly support the rubber skin and to keep it from being chewed up in the mechanism's many moving gears and parts. The skin was then velcro-mounted over the mechanism and these springy,vacum-formed core pieces; and our scale model rhino was off and running at full gallop. The head was mounted on a control rod and left loose of the body, so it can be puppeteered independantly while the rhino is running. Colored powders are applied over the painted rubber skin, to reduce the natural oiliness of the rubber skin on shoot days.