Subject:
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Re: ok, time for a stupid question...
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 19 Jan 1999 14:36:07 GMT
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Original-From:
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Craig B Agricola <AGRICOLC@BTVspamcake.IBM.COM>
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Viewed:
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1146 times
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On Tue, Jan 19, 1999 at 05:17:07AM -0000, Russell Nelson wrote:
> Chris Stanley writes:
> > what exactly is the purpose of a differential gear? i've got several of
> > them, i've seen them used in various projects, but i've never quite
> > managed to figure out what they do.
> >
> > ok, there. i feel much better. thank you.
<clipped nice explanation of differentials>
>
> Unfortunately, it also means that, if one wheel is more likely to slip
> than the other, that when it slips, the non-slippery wheel doesn't
> rotate at all. That's why you have limited-slip differentials.
> Essentially they work by putting a brake on the idler gear in the
> differential.
>
> --
> -russ nelson <rn-sig@crynwr.com> http://crynwr.com/~nelson
> Crynwr supports Open Source(tm) Software| PGPok | There is good evidence
> 521 Pleasant Valley Rd. | +1 315 268 1925 voice | that freedom is the
> Potsdam, NY 13676-3213 | +1 315 268 9201 FAX | cause of world peace.
This has long been a curiosity of mine; I understand the general idea of
increasingly braking an idler gear on the axle that is going faster (I presume
the braking is proportional to the difference of the speeds, which I further
guess is due to a second differential...) Well, anyway, as you can see, I am
just purely guessing. Can anyone tell me _exactly_ how the mechanism works
on a limited slip differential? (I am crossing my fingers that it is not
a system based on viscous liquids and that there is a solution made entirely
of gears...) And the final $20,000 question is: Has anyone implemented one
purely in Lego, and if so, would they be so kind as to post pictures or LDraw
data? Pretty please?
-Craig
--
Craig B. Agricola W: (802) 769-4636
Work Related Email: agricolc@btv.ibm.com
Personal Email: cba@po.cwru.edu
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: ok, time for a stupid question...
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| Chris Stanley writes: > what exactly is the purpose of a differential gear? i've got several of > them, i've seen them used in various projects, but i've never quite > managed to figure out what they do. > > ok, there. i feel much better. thank you. (...) (26 years ago, 19-Jan-99, to lugnet.robotics)
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