Quote:
Originally Posted by caume
I was thinking the same thing about the bumpers.
For the omnis, shouldn't coefficient of friction be high in the direction of the wheel? The added pressure from the sides of the rollers should help, no? The reason omnis are used to get away is because they are more maneuverable, but if the rollers aren't consistent in every direction, they should be good for pushing, I thought.
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Not sure what you mean by added pressure from the sides of the rollers, so forgive me if my thoughts don't make sense with yours.
The main issue is that most collisions are directly applied to a bumper side. This means that only two of your wheels will be driving directly against the pushing robot, and you're not using all of the power that you have efficiently since the driving vectors are at an angle.
Edit: other problem with omni directional drivetrains like this is that it is easier to get pushed from the side and be moved. A good driver can get out of it, but usually it ends up not being worth it.