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Unread 06-05-2012, 15:34
nxtsoccer nxtsoccer is offline
Wearer of the Pirate Hat
FRC #4087 (Falcon Robotics)
Team Role: Mentor
 
Join Date: May 2012
Rookie Year: 2012
Location: New Orleans, LA
Posts: 17
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Re: Mechanum Wheel Sizes

Quote:
Originally Posted by efoote868 View Post
Using a gyro allows you to do something called "field centric drive". Basically, if the robot is in front of you and you push your joystick forward, the robot moves away from you regardless of how it is spun.
In effect, the robot has no front.
Any ideas on how to program this? I have some previous experience with LabView, but I haven't the faintest idea of where to even start with this. Not to mention we don't have a gyro to work with...

Although, we may just end up having a more traditional robot with a front and back. The field centric drive and encoder-based correction sounds more like something to do when we have had more experience with mecanum. I think that four motors with mecanum wheels would be a good starting point, and simply adjust for the lack of a perfect straight line by hand.

Last edited by nxtsoccer : 06-05-2012 at 15:35. Reason: grammar corrections