Quote:
Originally Posted by joeweber
It's not a square shaft, It is the shaft that comes with the tetrix kit with a flat spot. If I lathe down the shaft smaller I would still run into the problem of contact with the pole and the friction required to go up it with out slipping. I place rubber electrical tap over this shaft which is legal but there is nothing else small enough that is legal.
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We found that precision on centering is critical and we had the accuracy of a lathe.
If the shafts are contacting more than about an inch from to the motor, there is significant wobble.
If the load is more than 1.4 lbs per motor, there isn't typically enough of the shaft in contact with the pole to prevent destruction of the tire.
Having the right amount of normal force on the tires is critical. The optimum is a function of the robot weight.