Minimum Robot Steering/Speed Control

Got two servos? Is one continuous rotation? Great, go make a robot!

This is a piece that can be used as a foot for a robot. Use a regular servo on top for steering, and a continuous rotation servo (with circular horn and knex tire) to push the robot. The weight balances out if you use a 9V battery on the battery platform. The unit doesn't have very much for clearance from the floor, so make sure it's mounted upright.