[python] Re: New Vython frame design -- Using rectangular tubing, closer to Python design

@ Michael:

Oh, Jürgen, in regards to the computer drawing of p4 on the Python homepage ( http://www.python.tieflieger.net/pics/p4.gif ), is that pretty accurate? If I wanted to take measurements from it, can I use "seat height: 25 cm, wheelbase: 113 cm" to determine the scale? 

p4.gif is not an existing bike. It is a mixture of my 26" p3 and of
Maja's 24" p4 (considering the pivot design).
Wheelbase of p4.gif is 116 cm (p3 has 129.5 cm).

(Thanks Michael, for translating your measurements into the metric
system.)


@ Dirk:

how do you align the rear/front wheel axises in both horizontal+vertikal. 

I like the idea of Jürgen Maier of using an old steel table to fix the
important frame parts, using a given wheelbase. (see attachment)


how do you align the BB with the front wheel 

On my construction page, I try to describe the method that I
have used.

how do you align the middle axle (mine is a eduardo axle ;-) ). with the rear wheel. 

As the steering pivot is aligned with the front wheel, I connect both
wheels with long steel tubes so that they are in line. Then I adjust
the steering angle and weld both parts together.
(see http://www.python.tieflieger.net/pics/assembly.jpg)

Good luck with the building.

Jürgen. 

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