Quote:
Originally Posted by Andrew Schreiber
Reducing speed in software is going to make your motor run harder.
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^This.
Here's a rather contrived example, but it illustrates the point.
Suppose you are using a BB550 motor to raise an arm, and you want to drive the arm at 15 rpm (90 degrees per second) at a torque of 500 oz-in.
If the total mechanical speed reduction from motor output shaft to arm rotation is 10:1 you'll be drawing ~60 amps
If the total mechanical speed reduction from motor output shaft to arm rotation is 50:1 you'll be drawing ~12 amps