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Originally Posted by nikkibajbaj
I'd be more concerned about the strength of the gear teeth, especially in the later stages...if you take a CIM down to 2.2 rpm...you're going to be multiplying the max torque you can exert (it'll be around 90-100 oz-in when you trip the 40 A breaker) and if your free rpm is 2.2 rpm...then your gear ratio is somewhere around 2400...
240000 oz-in is a LOT of torque. be absolutely sure your gears can take it...you may have to step up the pitch a bit
but i totally agree...that amount of engineering proficiency and gumption in an 8th grader has the potential to be amazing...i look forward to future work.
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it is not the small CIM but the large CIM to be clear.