Just a practice elevator I made over winter break, based off of 973’s 2011 offseason robot. Much thanks to Adam Heard and 973 for the RAMP videos!
CAD is available here: https://drive.google.com/file/d/0Bx6dgMkncv-3dXU3UUVtQWdBSkU/edit?usp=sharing
The cable rigging is a bit interesting, described further by Jared341 in this post: http://www.chiefdelphi.com/forums/showpost.php?p=1201847&postcount=18. The drum was not designed, but with this setup, you don’t need a 2-stage drum.
Cable is Dyneema, as 254 has used in the past. Bearings are R3 bearings, as used by 973 and show in the RAMP videos.