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[DPRG] Borenstein's UMBMark
Subject: [DPRG] Borenstein's UMBMark
From: Steve Hassenplug
steve at teamhassenplug.org
Date: Tue May 20 16:11:22 CDT 2008
>
> Or you might try different tires. jBot's are the "Road Rage"
> after market tires:
>
> <http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXAGB9>
>
> that gives jBot good enough odometry to run the 100 foot
> square without compass or IMU, I bet they'd work pretty
> well on the UNI robot as well if the tail wheel sideways
> drag is not causing too much slippage.
>
I think jBot's design somewhat resists turning. So, if it's driving along,
and you bump the back of the robot, it will still continue pretty much the
same direction. On the other hand, a "normal" three wheeled robot will
easily be bumped off course doing the same thing.
Also, one reason for inconsistancy in turns could be because it's so easy to
turn. Again, jBot requires a very deliberate (and consistant) amount of
force to turn 90 degrees.
Not sure if that makes sense to anyone else, but it seems reasonable to me.
:)
Steve
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