Quote:
Originally Posted by AdamHeard
Why have the ball differential at all?
I can't see a mode where you'd ever have the left side not all at the same speed (as you appear to drop front/rear modules at the same time).
That differential adds complexity, and is actually really difficult to tune properly.
A few of my rc race cars run ball diffs and it's very much a feelings game.
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He said he wanted to allow replacement of the omnis by mecanum wheels, to enable strafing without an additional mechanism. But this requires running front and back at different speeds, which requires the differential to power the middle guy.
But my question is why you need the central wheel. Is it that important to turn around your center on all traction wheels?
FIRST is similar to real life in that nothing is perfect and you have to deal with the circumstances as they arise and make the best of it! - Sean_330 [more] 
30-07-2014, 13:53
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