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Ev Archive for April 2001
1913 messages, last added Wed Aug 08 18:51:44 2001

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RE: Batteries for my three wheeler & suspension questions.



     Hi Micheal and All,
--- Michael Hurley <mephit_stophilis@yahoo.com> wrote:
> >      It doesn't matter
> 
> Big Snip!
> 
> >  KIS
> 
> >     Your post gave me the idea to use a disc brake
> >rotor to mount the wheel sprocket to that just
> bolts
> >to the wheel studs, cheap, easy. Is that what you
> >meant?
> 
> Yeah, that would work fine, I think. Kinda whatI was
> trying to come 
> up with. Thanks for beating me to it! ;-)

    Your welcome , I'm here to please;-)) . 

> >     Yeah, right ;-)), pricey.
> 
> Why would that be so pricey? What about using two
> beveled gears instead?
   2 bevel gears, 1 or 2 universals, a sliding spline
joint, machining or 2 sprockets and a belt, you be the
judge.
> 
> 
> >      From other posts,
> >        I'll use kevlar cloth on the inside to keep
> >glass splinters, cars, ect out of the pass
> >compartment. This holds the whole thing together
> and
> >spreads the impact loads nicely at a low cost of
> less
> >than $100 extra. For a little,$500 more the body
> would
> >  be bullet proofed.
> 
> Heh. Well, the sides have those deep bulges, how
> about 
> kevlar/urathane/kevlar outer skin, same inner skin
> and about a foot 
> expanding urathane foam between? bet that would stop
> a .22 pretty 
> well. Heh. Would weigh a ton though (figuratively).

   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. 
> >      Good flat panel molds can be made from
> formica
> >sheets well waxed. Use the thick stuff with a
> smooth
> >surface for the best results. Do all your flat
> panels
> >this way and then bend the to the curves you want.
> On
> >your design most of the body can be done this way
> and
> >all you have to finish is the joints. Saves about
> 1000
> >hrs in labor.
> 
> You mean use it as a buck? Instead of a series of
> formers?
        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. 
   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.
> >      As for the body raising under big power, if
> you
> >put the t-arm pivots below the wheel center
> wouldn't
> >that help keep the from body raising?  Even if it
> >doesn't it's something I'll except on mine.
> 
> Well, I think I'm gonna put the motor on the frame
> somewhere to help 
> keel the Cg forward, so I'd have the opposite
> problem, right? The 
> rear dropping on acceleration? So would I need to
> mount the pivot 
> above the wheel center.
   Same, put slightly under about 2" is my guess.
Better shock and spring angles too.
> >         Where is the brakes on most cars, put it
> >there.
> 
> Ok, I got that, I was wondering put what there? A
> really small disc?
   Don't forget that you need a parking brake. I'd use
a disc as they can be lighter, stronger.
                 jerry dycus
> -- 
> 
> 						Auf wiedersehen!
> 
> 
> 


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