Here is a quick video of our robot climbing.

Current state of the robot, with the climbing mechanism and electronics mounted

This is the functional prototype of our climbing mechanism. The arm will start in the robot folded up. During End Game, the rack and pinion will extend the first stage of the arm. When the arm extends a certain distance, the flip-up arm becomes unclasped and the surgical tubing causes the second stage of the arm to swing upward. Once the hook latches onto the bar, the rack and pinion will run backwards to lift the robot. This prototype, with the exception of the hook, could be used in the final robot.

We finished mounting out transmission onto our treaded drive base. The frame is wide enough to allow the entire gear assembly to fit in the center. A single servo motor is the mechanism that changes the gears. Chains will connect the geared shafts to the drive wheels. Currently we are having technical difficulties with our servo and we have yet to connect the chains.