[octothorpe]

Thanks! I'm glad you like it. Unfortunately most of the elevator mechanisms are hidden in this picture, but you can see some of it near the bottom of the robot towards the front. There are two blue shiny things which are the AndyMark planetary gearboxes that we used to adapt the Fisher-Price motors to the AM Toughbox (about a 46:1 reduction in total). This gearbox chain-drives a polycarbonate tube (visible in the photo just beneath the gearbox) mounted between the towers which acts as the drum to wind cable. We positioned the drum with the axle running front-to-back so that as the drum spins, it pulls in cable from either side. These cables go out to the towers flanking the robot and loop through a total of 8 pulleys on the different stages to form the continuous lift.