I want to make sure I understand the math before buying a motor!
So, if I have a 3.2kg/cm motor is it the same as 160g at 20cm? Or 1.6kg at 2cm ect.
I want to move a 1kg object that is 20cm away from the motor axis 180 degrees (from one horizontal to another).
My understanding is that if I were to use aforementioned 3.2 kg/cm motor and then connected that to a 30:1 reducer of some sort then I would have a torque of 96kg/cm, or 4.8kg @ 20cm. There would be friction and inefficiency in the reducer, but is this general premise correct?
Torque is force multiplied by distance, so
0.160Kg at 20cm = 3.2Kg-cm
1.6Kg at 2cm = 3.2Kg-cm
1Kg at 20cm = 20Kg-cm
If you add a 6.25:1 gear down to a 3.2Kg-cm motor, it would theoretically provide 20 Kg-cm, but also 1/6.25 the original rpm.
If you add a 30:1 gear down to a 3.2Kg-cm motor, it would theoretically provide 96 Kg-cm, but 1/30 th the rpm.
Friction and inefficiencies tend to result in heat and noise.
