Subject:
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Re: Back wheel construction advice
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 18 Mar 2003 04:01:22 GMT
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Viewed:
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740 times
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> I don't understand why you'd choose a wheel with such a wide 'grippy'
> tire. You want the wheel to spin on the spot with minimum friction,
> so wouldn't you want to use a large pulley with a thin tire?
Sure, you can make a caster with the pulley wheel and thin tire though I
think it is a little less elegant. For one thing, since the pulley wheel is
only 1/2 unit wide, it will slop around unless you use a longer axle and
bushings on the ends to keep it centered. The pulley wheel is also larger
in diameter so it requires a slightly different construction in the caster
assembly to keep it from rubbing.
BTW, I do have robots that use the pulley wheel as caster.
Gus Jansson
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Message has 1 Reply:
 | | Re: Back wheel construction advice
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| (...) A better idea yet is to use the pulley wheel without a tire. There is no need for traction in the caster. A hard plastic wheel allows the caster to act like a skid sometimes and minimizes the caster steer experienced when straightening out (...) (22 years ago, 18-Mar-03, to lugnet.robotics)
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Message is in Reply To:
| | Re: Back wheel construction advice
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| (...) tire. You want the wheel to spin on the spot with minimum friction, so wouldn't you want to use a large pulley with a thin tire? ---...--- Steve Baker ---...--- HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com> HomePage : (URL) : (...) (22 years ago, 17-Mar-03, to lugnet.robotics)
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