... lan-guage and filled with sketches so novices and those not trained inmechanical engineering can acquire some understanding of this interest-ing field. It also includes clever schemes and mechanisms ... mid-levelmechanical engineers should find new and useful. Since mobile robotsare being called on to perform more and more complex and practicaltasks, and many are now carrying one or even two manipulators, ... that were required areremoved, and the model’s surfaces are sanded or polished. Polymerssuch as urethane acrylate resins can be milled, drilled, bored, and tapped, and their outer surfaces can...