Subject:
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Re: Problem with auto-steering mechanism.
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 30 Oct 2002 00:27:15 GMT
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Viewed:
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948 times
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In lugnet.robotics, Steve Baker <sjbaker1@airmail.net> writes:
> > ..I think you want the front wheel to be able to spin in place easily, i.e.
> > not have a wide grip.
>
> That's *not* entirely obvious.
>
> There is a tradeoff between ease of twisting of the turntable and ease of
> slippage in forward drive. A nice chunky tyre with tons of grip is hard to
> twist - which makes the robot drive forwards better without turning when
> it's not supposed to - and it makes the wheel less likely to skid when it's
> supposed to be stalled and causing the turntable to twists.
Ahhh. I see your point now. Independent of what the back wheels are doing,
you still want a bias in the front wheel itself to go straight rather than
spinning in place. Otherwise, all the power could just as easily spin the
front wheel in place rather than actually rotate the wheel.
Thnx,
- Gareth
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Message is in Reply To:
 | | Re: Problem with auto-steering mechanism.
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| (...) That's *not* entirely obvious. There is a tradeoff between ease of twisting of the turntable and ease of slippage in forward drive. A nice chunky tyre with tons of grip is hard to twist - which makes the robot drive forwards better without (...) (22 years ago, 30-Oct-02, to lugnet.robotics)
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