paper: Team 33 Arm Design Paper

[IKE]

I have seen some links talking about, and have received a couple of PMs regarding the 2010 arm.
A couple of words of caution. This arm and robot could rotate on the pole. This only occurred 1 time in which it resulted in a fall, but that was also a vertical pole.
Happy climbing.

[EricPalmatier]

Thank you for posting these notes. I have been working on a similar design, and seeing your design paradigm makes me think I'm going on the right track. One quick question, however. What diameter and material did you use for your final axel of rotation. (The one with the very large sprocket on it). Testing my design yesterday, I ran into a material failure that has me worried. Lifting 180 pounds, 9 inches from the point of rotation, my 1/2" 4140 steel shaft with a 1/8" keyway failed. The shaft ultimately twisted about 120 degrees from where it started (straight!!!). Any insight would be greatly appreciated!

P.S. Amazing design and engineering on that arm! I currently have arm envy!

[stingray27]

Not to take away from Killer Bee's bot at all, but here is just another example of that same method. There was discussion on this page about how it worked:

http://www.chiefdelphi.com/media/photos/35095

[BJC]

Other robots worth taking a look at are Simbots (2010) and 254 (2010). Both of these teams had systems that hung from the virtical pole but with some key differences from us. (more then one way to skin a cat)

[Tom Line]

Originally Posted by IKE

I have seen some links talking about, and have received a couple of PMs regarding the 2010 arm.
A couple of words of caution. This arm and robot could rotate on the pole. This only occurred 1 time in which it resulted in a fall, but that was also a vertical pole.
Happy climbing.

We also found out the hard way that your armed gripped a bit better than ours did when you 'ejected' us from the pole during a match - I believe it was State quarterfinals? Jim's reaction was..... memorable.... A bump would send us spinning, but you managed to throw us completely off the pole.