Quote:
Originally Posted by Storcky
Our team used two omniwheels in the front and two driven traction wheels in the back. The only problem with it was we could not get the omnis to stop turning when we wanted them to. This resulted in the front of the robot continuing to spin after we expected it to. Also, although they were very manuverable, another disadvantage that it was nearly impossible to go straight.
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Driving Straight is definitely possible with omnis. Arc turning with two back omni can cause your back two omni wheels to fishtail moderately making the robot more difficult to drive. FRC#494 in 2006 used omnis in the corners instead of two omnis on the back side to help control fishtailing. Read the full report on page 160 of the 2006 FIRST Robotics Book.
the hardest task this year is the same as every other year: getting the engineers out of the crate so you can close it up and the FedEx guy can haul it away! - KenWittlief [more] 
15-01-2008, 10:39
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