Re: Batteries for my three wheeler & suspension questions.

["Rich Weiss" <RichHeidi@TechHeadNet.com>]

Do not expect composites [Kevlar, graphite, and fiberglas] to do anything
but shatter with an impact. Use TIG welded "chrome-moly" for your frame/cage
assy, just like the race sanctioning bodies require.

Check out  www.westsystem.com  for composites info, also www.defenderus.com
for supplies [Defender has stuff like Dynel, orlon, and poly-pro as well]
also http://composite.about.com/industry/composite/mbody.htm  has lots of
resources, be sure to view the forums archives.

Rich


----- Original Message -----
From: "Michael Hurley" <mephit_stophilis@yahoo.com>
To: <ev@listproc.sjsu.edu>
Sent: Monday, April 30, 2001 7:05 PM
Subject: RE: Batteries for my three wheeler & suspension questions.


> >     Your welcome , I'm here to please;-)) .
>
> Heh. >thbbthbthth!<
>
> >    2 bevel gears, 1 or 2 universals, a sliding spline
> >joint, machining or 2 sprockets and a belt, you be the
> >judge.
>
> OK, so I see the point, but I'm a little confuzzled as to why so much
> hardware would be necessary, especially the spline. Just for
> flexibility through the car's movement?
>
> >    Bullet proof vests use 10 to 25 layers of fabric, 2
> >layers will just slow it down. Also kevlar is only
> >good when in tension. This makes it good inside but
> >bad in compression like the outside. Great for
> >abrasion resitance too. Very light weight, the
> >lightest in tension.
>
> Actually, it was just a joke. I have no need or wish to make this
> thing bullet proof. Redneck proof would be nice, but impossible.
>
> >         Make flat panels on the mold , cut them to
> >shape bending them over a framework,strongback, buck
> >to the shape you want. Then tab them together with
> >glass strips and finish the joints. Check out how they
> >build boats. You could bend them over your roll cage
> >too.
>
> Hmm. How would you make a composite that way? lay the foam on top of
> the Formica? Or is this just good for making a fiberglass shell?
>
> >    After having a roll bar inside my last one I'm
> >putting it inside the skin but that easy using glass
> >roll bars. Just cut out the roll cage pattern in the
> >foam and lay in glass strands till the size is what
> >you want. I use chopper gun feed glass and put 20 to
> >50 strands together to make them up. Very strong.
>
> Interesting. What is the strength to weight ratio in comparison to a
> tubular steel cage? and what about high speed impact? At what point
> will the glass splinter and break?
>
> >    Same, put slightly under about 2" is my guess.
> >Better shock and spring angles too.
>
> Well, guess I need to rethink my suspension again!
>
> >    Don't forget that you need a parking brake. I'd use
> >a disc as they can be lighter, stronger.
>
> 'K, makes sense to me. Kinda what I was shooting for, anyway. So what
> cars have disc based emergency brakes that I could cannibalize?
> --
>
> Auf wiedersehen!
>
>
> _____________________________________________________________
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>
> "Was it a dream where you see yourself standing in sort of Sun God
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>
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