Quote:
Originally Posted by wolfman  Reason for 3 gears is to allow the axle to rotate in the same direction as the motor. Small gear on motor, large on axle, check direction of travel, if you need to reverse, put second gear between the one on the motor and the large gear. Small to Small gear will give you a 1 to 1 reversed rotation |
You are correct. But the middle gear will not affect the ratio.