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Originally Posted by troy_573
im no motor expert (although i try to be) but as far as i know there isnt any formula to calculate the torque and rpms of the motor in reverse also another note:
the 450 rpms is for the motor in 3rd gear
1400, 2nd (what my team uses)
and 1800 3rd
and correct you dont worry about the chuck but word of advise is to make sure the bolt is tightened atleast after every match because last year the bolt holding the sproket to the drill came off and we were out for the entire compition because of other allignment issues this caused
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yea we use 2nd gear too. it was a guess lastyear and worked awsome. have you put threadlock on the reverse screw? we did that last year and never had it loosen. and well since the different speeds of the motor in clockwise and counter are due to the timimng of the motor,its a possibilty there's an efficiency finding equation. if the timing was zero and you well assume the motor running full speed efficiency is 100% (which it isnt i knw) then for each degree in the advanced direction would yield X % decrease in efficiency and Y % increase in revs. i think. or maybe not. it woulda been useful info tho. too bad.
how did you guys mount the motor last year? this year we have tried the square aluminum sandwich idea. its AMAZING compared to the Ubolt we used last year