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Unread 09-02-2005, 16:09
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Re: 2005 Motor Information

My AP physics teacher (along with my school's freshman physics teacher) just explained to me that gear reduction does not do anything to change the motors torque. Thus, after the 1:180 reduction of the gearbox and then another 1:10 to get it down to 12 rps, your system still has only .324 Nm at 6V.
We decided that a system using the fisher price motors should have a worm gear to give it the torque that the motor lacks to lift a 1.5 meter 100+ newton arm.

Am I just completely ignorant to have assumed that you would be driving the arm from a direct chain link to the FP gearbox shaft or is my teacher wrong?

I must be missing something becaue many people here, such as jgannon, have explicitly stated that the torque is greater after reduction.