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Unread 24-12-2007, 02:17
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Blue_Mist Blue_Mist is offline
will return to 766 soon!
AKA: Mika Lai
FRC #0766 (M-A Bears)
Team Role: College Student
 
Join Date: Apr 2007
Rookie Year: 2006
Location: California
Posts: 183
Blue_Mist is a jewel in the roughBlue_Mist is a jewel in the roughBlue_Mist is a jewel in the rough
Re: 6WD Pros and Cons

Team 766 has used 6wd with rocker for the last three years and that has worked out very well.

Pros:
- Heavy, which resisted being pushed, and this year we didn't need to go all that far considering the rack in the middle of the field as opposed to 2006, with the goals, defense and ramps (Biased a bit here)
- Low cg for pushing others
- Turning is definitely better than 6wd no rocker

Cons:

- Center wheels wear down much faster than the outer four (This is one problem related to our choice of tread this year; we used this thick, heavy, rough stuff that we screwed to our inch-wide Andymark wheels that would actually wear down to show the screw heads. The center wheels wore down much faster than the outer four and lasted perhaps one regional. Also, not good for PR demos on concrete, asphalt, etc.)
- Heavy, but this is a con only if you need speed (Cheesy Poofs are known for speed, and a very light robot)

We have toyed with the idea of omniwheels, but haven't gotten around to using them.
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"There's no finer engineering than pit engineering." -kaszeta

"Show a girl how to use a wrench, and she'll put those skills to use for a lifetime. Hand it to her and tell her she's probably better off shopping, and she'll clonk you over the head with it, do your pneumatics system, and CAD the robot." -Amanda Morrison

'09
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