Quote:
Originally Posted by Dowjonesbotics
Is this what they call a swerve drive????  But hten what's a crab drive???
I'm a little confused as to the difference |
Swerve drive and crab are very similar and often the two terms are interchanged. Many years ago, some teams developed a type of drive that could steer all four wheels but had limited turning of the running gear. It allowed the robot to "swerve" around obstructions on the field. Crab drive allows the robot to move in any direction without needing to turn the robot. The steering gear has the ability in most cases to turn more than 180 degrees and sometimes continuously. The first robot I remember with crab was a Chief Delphi robot from around '97 or '98 and there was one steering motor and a chain that wrapped around all four steering modules.