to get the most torque possible out of those motors, step 1 is putting the smallest gear on the motor and the biggest on the axle. If you want to increase it from there, on the axle with the big gear, put another small gear on it and then have it drive a second axle with a big gear. I can't remember how many gears of what sizes come in the kit, but something like that will work. With enough gearing you can move about anything as long as you can hold your 'bot in place.
something like this ...http://www.schillereng.com/GearTrainDesign.jpg ... or this .... http://leake.ge.uiuc.edu/images/AI10/Gear%20Train.jpg
This is harder with just three gears. Ideally you need a fourth gear on the driven axle ... you'd want a small gear on the motor driving a big gear, then a small gear on the other end of that axle driving a big gear? clear as mud?
Kent
