It depends on a lot of factors - if the stepper is stopped between steps, the efficiency is zero.Earlier this week, I had a small nema23 size motor driving a pump and got about 20w of mechanical...
An ideal machine has, by definition, an efficiency of exactly 100%, which means that absolutely none of the energy it consumes is wasted when converted to power (energy per unit of time), hence the...
When it's close to " nothing " I'd say less than 10%. In a survey taken by USA Today several years ago, the most popular answers for this very question was " about 3 % " and " very little ". 10 % is...