Plastic gears are everywhere
today - throughout your car, at
the oceans' lowest depths, in deep
space. The question, when is a
metal gear a candidate for plastic
conversion, can be addressed in
three words, i.e. what's the application?
At the dawn of the Industrial
Revolution, so-called mechanics
were tasked with devising the precise methods that would make mass production possible. The result was the first generation of machine tools, which in turn required improved tooling and production methods.