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Unread 28-01-2016, 19:51
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Daniel_LaFleur Daniel_LaFleur is offline
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Re: Problems driving straight.

Quote:
Originally Posted by Ether View Post
That made me think of an experiment for which I'd be quite interested to see the results.

Take a well-crafted mecanum bot that drives fairly straight without the need for any closed loop control.

Tighten all the rollers on the left-side wheels and see what effect that has on forward-only commands on both carpet and hard flooring.

Do you think it would
a) still drive straight

b) veer to the left

c) veer to the right

d) do different things on carpet vs hard flooring
Give a rationale for your answer.





I'd like to see that experiment as well.

My guess would be a slight turn to the right ("C") as the vector addition on the left side (both straight forward) would be greater than the vector addition on the right side (1 @ 45 degrees right plus 1 at 45 degrees left). I'm just not sure if it would be enough of a difference to cause it to turn.

My post before was for a single mecanum wheel roller set to be tight (or significantly different from the others).
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Last edited by Daniel_LaFleur : 28-01-2016 at 19:57.