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Unread 13-08-2010, 15:40
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Ether Ether is offline
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Re: Converting to Mechanum....

Quote:
Originally Posted by ZipTie3182 View Post
This is sorta what ours looks like (except not with c channel): http://ep.yimg.com/ca/I/yhst-3383317...7_2119_2469960
Mecanum wheels will "work" with the KoP standoffs, but there's some evidence to suggest that the lack of stiffness in the axial direction with mecanum wheels cantilevered at the end of a "stalk" can contribute to wheel chatter. Were you planning on making or buying the wheels ? Either way, make sure the rollers don't have high bearing friction when under load. Make sure the wheels are either protected from impact, or are tough enough to take a hit without deforming and binding up the rollers. Also, consider using closed-loop wheel speed control for better fine control of the robot with mecanum wheels. With mecanum wheels, it is important that all four wheels are sharing the weight of the vehicle because each of the four wheels must generate forces to get the desired vehicle motion. So I suppose it is possible for your frame to be too stiff.

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Last edited by Ether : 13-08-2010 at 22:22. Reason: corrected typo