Quote:
Originally Posted by Ether
Tom, you said the 10.4:1 mod was easy. Would you be willing to post a bit more detail how you did this? Thank you!
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Ether, you'll find upon opening the gearbox that the gear that meshes with the motor can be placed on a different shaft. Indeed, it can be put on one of the outside shafts and be the only intermediate gear between the motor and the output shaft gear, if one machines the total height of the gearbox itself down enough. Machining the gearbox down is necessary for the motor to reach the helical gear while the helical gear drives the output shaft. Take one apart and you'll see what I mean - play around with moving the gears around onto different shafts.
This reduces the gearbox inefficiency a great deal, and allows you to use a small wheel directly driven from the gearbox output shaft, increasing efficiency even more.