Subject:
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Re: new (to me) use for worms
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Newsgroups:
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lugnet.build
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Date:
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Fri, 18 Jun 1999 20:41:44 GMT
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Viewed:
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647 times
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G. Benedikt Rochow wrote:
>
> In lugnet.build, Frank Filz writes:
>
> > If I'm understanding the workings, what is being suggested is to use the
> > worm as a slip coupling (which just happens to have a worm screw). If
>
> Yes.
>
> > you look at a cars drive shaft, you will see that it is in two parts so
> > that it can change length. Terrible ASCII graphic of car drive shaft:
> > +- this axle is fixed
> > |
> > v -------------+
> > ========================= |||||| this axle can slip in and out
> > -------------+
>
>
> I did not know that. I've accepted over time that a number
> of things in car suspensions must work simply by having
> room to wiggle a bit, but that this particulalr problem is avoided
> *that* simply explains a lot. (Wait till you see my solution
> to alignment that consists of just a solid rear axle swinging
> from a (single-U-jointed) driveshaft, with leaf-spring-like
> rubber bands going over it on both ends and thereby locating
> it quite straight - a single (tough, not Lego) rubberband
> replaces several balljoints.)
I've been up close and personal to a drive shaft. I had an old Chevy van
which liked to get into 2nd & reverse at the same time (fortuanately
always while stopped - because the vehicle will not go ANYWHERE in this
condition, if it happened at speed a new transmission would be in order,
and probably a new windshield also...). One time this happened on a
loading ramp. We were unable to unload the transmission sufficiently to
be able to work the gears loose, so we ended up disconnecting the drive
shaft from the read differential so that we could roll the van onto a
trailer to be taken to the shop to have something done about that crazy
transmission.
Re: Larry's comment about Lego only making snakes and scorpions: I had
the same initial reaction...
--
Frank Filz
-----------------------------
Work: mailto:ffilz@us.ibm.com
Home: mailto:ffilz@mindspring.com
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Message is in Reply To:
 | | Re: new (to me) use for worms
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| (...) Yes. (...) I did not know that. I've accepted over time that a number of things in car suspensions must work simply by having room to wiggle a bit, but that this particulalr problem is avoided *that* simply explains a lot. (Wait till you see (...) (25 years ago, 18-Jun-99, to lugnet.build)
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