766 Robot 2008

[octothorpe]

119.6 !?

And we don't even have decals or all those bolts in. Besides, don't forget that the camera still isn't on the robot, and although I know it's not crucial it'd still be really nice to get it onboard. Not to mention beads for the elevator drum. We may have to do more than just cheesehole polycarb. That air cylinder on top has always been too heavy for my tastes...

[burkey_turkey]

That looks like a sweet bot. We have an elevator on ours as well, but we had trouble powering the cables (continuous like you guys). Could you go into more specifics on the design of the elevator, im very curious. Once again, solid design guys, thats fantastic work!

[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.

[cardinalman86]

that is pretty cool, it's looks like one of the designs we were contemplating using, until a different idea came up of course, lol, that's awesome .