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Step 3Adding The Caster Wheel
We mounted the Caster Wheel Kit in the middle of the back of the robot - centered one of the three holes on the mount on the base about 1/2" from the edge of the board, then used a square to make the other two holes parallel to the back of the board. In this configuration, the caster wheel can extend beyond the base when the robot is moving forward. We used #6 flat head bolts and nuts for this - used washers to cover the socket holes in the caster kit - again to keep the top obstruction free.
The only change to the kit was that we extended the shaft to make the base level. For our setup, we made a new shaft from 1/4" aluminum rod that was 1 3/4" longer than the one with the kit. We used a Dremel tool to make a notch in our newer longer shaft to match the one in the kit.
The only change to the kit was that we extended the shaft to make the base level. For our setup, we made a new shaft from 1/4" aluminum rod that was 1 3/4" longer than the one with the kit. We used a Dremel tool to make a notch in our newer longer shaft to match the one in the kit.
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