Hi
I just started to read whole website.
On page:
http://www.societyofrobots.com/mechanics_gears.shtml I think there is a mistake.
In section Compound Gears there is a formula for torque gear calculation:
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In this example, what minimum torque does the motor need to pull the weight up?
writing down the equations:
torque_motor * radius_gear1 = torque_gear2 * radius_gear2
torque_gear2 * radius_gear2 = torque_gear3 * radius_gear3
torque_gear3 * radius_gear3 = weight * radius_gear3
simplifying, we get:
torque_motor * radius_gear1 = weight * radius_gear3
so therefore the minimum required motor torque is
torque_motor = weight * radius_gear3 / radius_gear1
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BUT THE UNITS are not ok...? how can moment can be compare to load (mass)?....
can someone verify my opinion?