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Unread 03-07-2008, 10:35
Unsung FIRST Hero
JVN JVN is offline
@JohnVNeun
AKA: John Vielkind-Neun
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 2000
Location: Greenville, Tx
Posts: 3,159
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Re: 6WD Chassis Stiffness vs. Maneuverability

In my experience it is VERY possible to do a 6WD with 6 high traction wheels. If you find yourself reducing traction on some wheels to increase turning, you're negating MANY of the virtues of using a 6WD in the first place.

There have been lots of arguments about optimizing a 6WD configuration, especially centered on how much "wheel drop" you should use. In my experience this isn't as huge a factor as many people seem to think.

I believe that the key to a well performing 6WD lies in the robot's CG. A lower CG will result in much better performance than a higher CG. Placement front-to-back is also important and will greatly change the way a drivetrain performs.

Don't believe me? Take one of your old robots and add some weights to it in different places, observe the change.

Good Luck! Looking forward to seeing Team 33 at IRI.
-John
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In the interest of full disclosure: I work for VEX Robotics a subsidiary of Innovation First International (IFI) Crown Supplier & Proud Supporter of FIRST