All-terrain Screw Wheel Base

The All-terrain Screw Wheel Base (ATSWB) uses two screws that are spun in opposite directions to move forward. The reason why I chose this is because it is an extremely stable wheel base and it has high traction. The ATSWB is made entirely of aluminum, and the screws are hollow to make it lighter. If the ends of the tubes were sealed off (which they are not), it might be able to float, which provides some interesting possibilities for other applications.

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