[python] Re: Python frame design (work in progress)
- From: Dirk Bonné <dirk.bonne@xxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Wed, 04 Apr 2012 21:38:09 +0200
On 03.04.2012 17:23, Mike Power wrote:
> I am looking at building my own python. I am 6'5" so I thought I
> would take advantage of my height and build a 700C python. To make
> sure I could build it, and just to give breath to my concepts I
> created a design in Blender. Below is a short video. Anybody want to
> share their thoughts? I am most concerned about the strength of the
> union between the hinge and the bicycle seat.
A nice and slender design! I think the frame won't be stiff enough at
several places:
* the bottom bracket: there is generally a lot of torsion going at that
place and your design with the one tube going down along the wheel won't
prevent the BB from wiggling.
* another typical place is the pivot area. I believe that the rear part
connecting to the pivot allows to much torsion and bending.
* the rear wheel has two vertical tubes going to the seat and will allow
the rear wheel to wiggle sideways.
I am unsure about the tube going up right in front of the seat. I think
that it will be annoying.
best regards,
Dirk
>
> http://www.youtube.com/watch?v=uFA_Og78W4c
>
> Mike Power
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