Sworm Drive
From FIRSTwiki
Sworm Drive is a drive system developed by team 269 in 2007.This drive featured a four-wheel worm crab drive with a 15:1 gear ratio. It was powered by four CIM motors and used a window motor to move the cables in order to steer. The wheels on this drive system only turned 180 degrees, making it very difficult to program.
Here you can see an early prototype of 269's pioneering drive system.


