Subject:
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Casters
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 22 Aug 2000 16:24:17 GMT
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Original-From:
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Wilcox, Doug <doug.wilcox@iSPAMCAKEmckesson.com>
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Viewed:
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591 times
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Can anyone explain to me why front-mounted casters, with the powered wheels
toward the back of the robot (see photo at
www.wordsmithdigital.com/mindstorms/diaries.htm ), stay in alignment better
than rear-mounted casters with the wheels in front? I can't quite grok it.
Doug Wilcox
Senior Web Developer
iMcKesson Provider Solutions Group-Needham
160 Gould Street, Suite 130
Needham, MA 02494-2308
Phone: 781.453.2900 x 237
Fax: 781.455.7990
e-mail: Doug.Wilcox@iMcKesson.com
http://www.imckesson.com
"You see, I had this space suit. How it happened was like this ..."
(Opening lines from Robert A. Heinlein's Have Space Suit-Will Travel)
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Message has 2 Replies:
 | | Re: Casters
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| It might be thus: When the motors engage, there's some torque in the body that would tend to lift the nose of the vehicle up (think of a dragster, how it pops a wheelie under acceleration). Thus, when under acceleration, the front of the vehicle is (...) (24 years ago, 22-Aug-00, to lugnet.robotics)
| | | Re: Casters
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| (...) When the vehicle is rolling towards the caster, the caster is much closer to the drive wheels, and they have a lot more leverage against the caster to position it where they want. When it's rolling away from the caster, the caster is so much (...) (24 years ago, 22-Aug-00, to lugnet.robotics)
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