This is a great thread with many useful resources.
I'm building a tutorial that goes through an Octocanum drive train design (but includes research and calculations that are useful for other drivetrains and robot mechanisms too).
http://www.chiefdelphi.com/forums/sh...d.php?t=137711
Also, if anyone else out there is using social media to share resources (which has advantages and disadvantages relative to forums in my opinion), I'd love to know about it. I'm trying it out with
https://www.facebook.com/CrowdSourceRobotics but would gladly join a more-established community.