Almost as small as a quarter, "Waalbot" uses two sets of three-footed wheels each controlled by a motor to accomplish its mission. A spring-loaded tail ensures the bot will always push against the surface. Unlike other wall-climbing robots that use vacuum suction, magnetic attraction or claws that grip, Waalbot uses dry adhesion — a type of adhesion found in biology.
"Biological inspiration has given us a great starting point in designing new and agile miniature robots," said Metin Sitti, assistant professor of mechanical engineering. "But, we have gone beyond the biological principles using our synthetic materials and abstract motion mechanisms."
The Robotics Institute