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Unread 15-06-2011, 23:39
TRWSHSHLX TRWSHSHLX is offline
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AKA: Henry Lei
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Re: [FTC]: Questions about 4 motor drivetrain

1) Yes that's correct. The 2 motor drivetrain will be slower than the 4 motor if the robot is heavy.

2) The "drop-center" configuration is good for when the robot have trouble turning because of the 6 wheel drive. When you drop the center wheel, only 4 wheels will be touching the ground at all times so that it's easier to turn. However, this configuration is usually implemented with all wheel powered so that you can utilize all the motors on the drivetrain and won't have trouble turning because of the # of wheels.

For HotShot! our team's robot had a 4 motor 6 wheel drivetrain and it had no trouble turning at all. So maybe you can try just having the center wheel at the same level with the outer wheels first and change it later if needed.

Also, it's nice to have all wheels powered.
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