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Unread 29-12-2012, 02:19
Travis Schuh Travis Schuh is offline
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FRC #0971 (Spartan Robotics)
Team Role: Engineer
 
Join Date: Dec 2006
Rookie Year: 1999
Location: Los Altos, CA
Posts: 123
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Re: VEX Robotics Relaunches VEXpro Product Line with over 120 New & Improved Products

Quote:
Originally Posted by DampRobot View Post
971 ran 9mm, 24 (or so) GT2 pulleys with 3.5" diameter, 2" wide wheels and a traction limited low gear. As far as I know, they never had any issues ratcheting.
Chris Is Me is right, we did have some ratcheting issues, but these only showed up in the post season.

We ended up replacing all of the belts before Madtown. They all failed by the teeth falling off, a sign of under tensioning. Thankfully they failed in a graceful way (robot still drove, just slightly reduced performance) and it was moderately easy to replace the belts.

We are still figuring out what we will do next year. We are considering widening the belts if we have space, increasing pulley diameters if we have space, or just running with the same set up again because it lasted for 3 competitions.

-Travis
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