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Re: Climber Gear Boxes
As posted above!
Start with the motor (or a small slate of candidates), then figure out a gear ratio required.
To figure out the motor, calculate the power you want from it. In the case of a steady climb, power = weight * height / time. If you do weight in pounds, height in feet, and time in seconds, know that a ft-lb/s is about 1.35 watts (or for mental math, 3 ft-lb/s is about 4 watts).
Look at the power output of various motors. Try to find a motor where the power at maximum efficiency is close to the desired power. If none work, try two of these motors. Then, go back to the JVN calculator and try out those motors and look for the best gear ratio. Remember that the key things are that you do not trip your breakers (draw way more than their rating for any length of time) or burn up your motors (run them at inefficient slow speeds or stall). Gear ratios will have to be calculated separately for different motors, even if they have similar power because they run at different speeds.
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