[python] Re: Fwd: Re: Prothon

Hello Jürgen,
in fact the seat is not satisfying yet, the mold i build for it was more an 
experiment. I wanted to find out how stiff wood and Glasfiber would be. for 
this i combined 11 sheets of Walnut with two layers Glasfiber. It is very 
comfortable and quite stiff but the next one will be a lot more wraped around 
my back and hips. I hope to feel more "anchored" with the rear then... Still  
some things to do..;)
Also i will certainly take an other wood for the next one, maybe hickory(?) or 
hard maple. this should be stiffer. I would like to keep the surface woody (hey 
i´m a woodworker...), and hope that a better form will make it work allready. 
Otherwise. well i have some foam here. 
Thanks for your advices,
Jérémy
-------- Original-Nachricht --------
> Datum: Fri, 03 Apr 2009 22:53:10 +0200
> Von: "Jürgen Mages" <jmages@xxxxxx>
> An: python@xxxxxxxxxxxxx
> Betreff: [python] Re: Fwd: Re: Prothon

> Bonsoir Jérémy,
> 
> a picture says more than 1000 words. I see you took a lot of effort into 
> the front part. I also like the metal/wood combination. Some good 
> solutions for non-welders. What did you use for the steering pivot?
> 
> The seat however is not really suitable for a center-steered bike. As 
> you steer with your legs the rest of the body has to be anchored with 
> the rear part of the bike. Therefore the seat must provide as much 
> contact area as possible. The problem with your seat is first its 
> narrowness and second its smooth surface which supplies no "grip".
> 
> I think the bike would be perfectly rideable with a better seat.
> 
> Cheers,
> Jürgen.
> 
> >> Hello again.
> >>
> >> so it seems that no one have realised a faired Python yet. or am i
> >> wrong? I just can?t let fall this idea, lets see what time will
> >> bring, maybe in a couple of years.... For the moment i am trying to
> >> optimate and to ride my prototype (Prothon would be a nice name?)
> >> wich is currently still not finished. It is not the bike i want to
> >> faire, but i hope to find a good geometry and construction method for
> >> it. It is made out of wood-rest and an aluminiumsheet (5mm). The
> >> current weight is around 16kg, wich is ok, for me. It should be
> >> possible to make it around 12 with other tires, different wood and
> >> some more holes in the front part. For the moment it seems to be
> >> reasonable to keep it a little stronger, so it might survive a while
> >> my 95kg trying to smash it.... I would be very thankfull for any
> >> suggestion, it is only a prototype and i would love to optimate it...
> >>
> >>
> >> Jérémy
> >>
> >>
> >> Ps:The pivot-angle is 63°, seat-angle aprox.43°.
> 
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