Why Sewing Machines Have So Many Parts

sewingmachine

A sewing machine uses one spinning motor (or foot pedal if you’re old school) for everything.  That means there’s a lot of gears in there!  I was going to draw how a sewing machine works today, but instead I found incomprehensible technical drawings of cranks and levers and parts labeled things like “45864” and “supplied only when repairs are made at the factory.”