05-11-2012, 17:27
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Passionate FIRST-er, CD donor
AKA: Gerry
 FRC #0578 (Red Raider Robotics) Team Role: Mentor
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Join Date: Jan 2012
Rookie Year: 2008
Location: Rochester, NY
Posts: 255
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Re: Different Swerve Drives
You could have one motor steer the left side, and another to steer the right side. When you turn both of them 90 degrees, you get crab drive.
|..|
|..| = Forward
/..\
\../ = Spin
/../
\..\ = Snake
-..-
-..- = Crab
Crab requires independent drive motors on the four wheels, since the rear wheels are aimed the opposite direction of the front wheels.
__________________
Cal
R3: Red Raider Robotics (FRC Team 578)
Fairport, NY, USA
www.FairportRobotics.org
2016 Finger Lakes Regional: Semifinalist on Alliance 7 (1128, 2010, 578)
2016 NYC Regional: Finalist on Alliance 3 (3419, 578, 3017), 4th seed team, Team Spirit Award
2015 Finger Lakes Regional: 8-3-0 in qualification, 7th seed, Quarterfinalist
2014 NY Tech Valley Regional: 8-4-0 in qualification, 13th seed, Semifinalist
2013 Finger Lakes Regional: 4-5-0 in qualification, 26th seed, Alliance 6, 1-2 in tournament
2012 Buckeye Regional: Gracious Professionalism Award, 7-3-0, 14th seed
2011 Finger Lakes Regional: Engineering Inspiration Award
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w0000000000000t! - Andy Baker [more] 
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