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Unread 19-03-2011, 02:02
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Joe G. Joe G. is online now
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AKA: Josepher
no team (Formerly 1687, 5400)
Team Role: Mentor
 
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Re: Swerve Drivetrain.

The revolution module that you linked is what is known as a coaxial swerve module, meaning that the motors are mounted vertically, parallel to the module's rotation axis. The wild swerve module contains the CIM motor, and gear reduction, within the swerve module itself. The primary advantage of coaxial modules is infinite rotation, as there are no electrical components within the modules. Wild swerve style modules are limited by the wires running to the motors, and must use sensors to limit their rotation. This limited rotation can also cause changing orientation to take more time than it might otherwise.

Non-coaxial modules, by nature, are independently powered, which can open up some flexibility in how the swerve is operated. For example, tank style turning will be much easier to accomplish in any orientation on a non-coaxial setup.

Finally, here are some teams that have produced quality crab and swerve drives over the years. Look into some of their past robots, its a great way to learn!

16 (most years)
71 (most years)
111 (most years)
118 (most years, but not the past couple)
148 (2008)
1114 (2004)
1640
1717
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FIRST is not about doing what you can with what you know. It is about doing what you thought impossible, with what you were inspired to become.

2007-2010: Student, FRC 1687, Highlander Robotics
2012-2014: Technical Mentor, FRC 1687, Highlander Robotics
2015-2016: Lead Mentor, FRC 5400, Team WARP
2016-???: Volunteer and freelance mentor-for-hire