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Unread 04-12-2012, 14:21
Andrew Schreiber Andrew Schreiber is offline
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Re: Omni-wheel accuracy

Quote:
Originally Posted by Nemo View Post
If you set the motors to brake instead of coast when your controller axes are within your dead band, that should solve your problem.

I agree that putting encoder feedback on the wheels is nice, but it's expensive ($56 per encoder), the encoders are touchy to get mounted properly, and it takes extra expertise to figure out how to program them once you have the instruments setup.
I disagree, there is only about 20 lines of code running on that robot in the video and it was all done by our student programmers with only minimal pushing from our mentors for what to search for in the documentation. We also had no problems mounting the encoders, we simply followed the instructions. I will say they are bloody expensive. Encoders were the single biggest expense in that robot.
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