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Re: pic: Side view of third try drive.
From other pictures posted by this team, it appears that it is in fact 2 chains. The four corner wheels are mecanum, and the chains feed to a ball differential, that allows the central omniwheels to spin only when the 2 gearboxes are moving in the same direction. For the most part, it acts as a standard mecanum drive, but the central wheels in combination with a suspension system provide additional forward traction and climbing ability.
Here is how it appears in reality: http://www.chiefdelphi.com/media/photos/34391?
__________________
FIRST is not about doing what you can with what you know. It is about doing what you thought impossible, with what you were inspired to become.
2007-2010: Student, FRC 1687, Highlander Robotics
2012-2014: Technical Mentor, FRC 1687, Highlander Robotics
2015-2016: Lead Mentor, FRC 5400, Team WARP
2016-???: Volunteer and freelance mentor-for-hire
Last edited by Joe G. : 13-12-2009 at 21:26.
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PS: When/if it gets to be too easy to build a machine that can accomplish a recent/typical FRC game, then I suspect it will be time for someone to unveil a harder game. - gblake [more] 
13-12-2009, 21:23
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