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Subject: 
Re: ok, time for a stupid question...
Newsgroups: 
lugnet.robotics
Date: 
Tue, 19 Jan 1999 14:36:07 GMT
Original-From: 
Craig B Agricola <AGRICOLC@nomorespamBTV.IBM.COM>
Viewed: 
929 times
  
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



Message is in Reply To:
  Re: ok, time for a stupid question...
 
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. (...) (25 years ago, 19-Jan-99, to lugnet.robotics)

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