I had a thought that came to mind that made me curious-- Though unfortunately I am not an ME.
I was wondering if someone could assist me in working through my thinking, but you will have to be gentle with me (instead of 'ask me anything', instead lets say 'assume I know nothing').
As a totally 'random and not precise' (thanks DALL-E2) image, I figured this image might elucidate my question a bit better.
Let us just 'imagine' for a moment I was raising up this pail with a pile of blocks in it with a stepper motor.
On its own, reasonably not that hard to figure out-- the force applied would be linear and the weight fixed. Suitable enough for sizing the proper required motor.
However, let us now imagine, as the pail were being raised, I were to slowly, one at a time, remove blocks from the pail and toss them aside, thus with each step, the load becomes lighter.
My naïve thoughts are that 'torque and speed' might alter during this transition, but how ? (i.e. are there formulae for this ?).
Further, since it is a stepper, is it the overall 'power' of the motor that matters most ? (i.e. A man that can bench press 150 lbs can certainly do 20 lbs-- But back to torque and speed, the rate at which they might do so might differ).
Or... it is a stepper motor, not a person, as long as it overpowers the max load, no difference (other than perhaps power consumption occurs during the transition-- Or speed is not at all affected).
Any thoughts ?