Before the modern dependency on plastic, metal was the mainstay of the construction material world. Toys were not made of plastic, as they are today, but of tin.
Metal is a good material for building robots because it offers extra strength that other materials cannot. In this chapter you’ll learn how to construct robots out of readily available metal stock, without resorting to welding or custom machining.
Metal is routinely broken into two broad categories: ferrous and nonferrous.
Ferrous metals are made from iron (Fe, from which “ferrous” is derived, is the symbol for iron on the Periodic ...