[python] Re: Bipolar update
- From: Jürgen Mages <jmages@xxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Fri, 25 Nov 2011 21:50:41 +0100
Thanks Vi,
you are really into something special with your Bipolar!
I follow its development with big interest. The double-pivoted bike
seems to run smoothly and the foldability without any screwing/locking
mechanism is unique. If I had the time I would build my own version with
my hammock-style seat, which should fold even smaller ... what the heck,
I want to start with the building next week ;-)
Keep up the good spirit and thanks for sharing,
Jürgen.
On 25.11.2011 17:12, Vi Vuong wrote:
The Bipolar has evolved. Initially, rear was controlled / locked by
the seat back, then loosen, and now completely free. The two-piece
compact seat was also too uncomfortable, especially at lower back
where the 2 pieces meet, so it's replaced by a full seat which brings
back upper body control.
The free rear wheel auxiliary steering is a little different, but can
be learned in minutes. AWS steering was not the original goal, but
now that the rear pivot is not occupied by the seat post, the rear
wheel can be controlled by a handle bar for a RWS study, should be
fun...
Walking was horrible (embarrassing among pedestrians), as both wheels
want to collapse/flop, plus the 2-piece seat was not helping either.
Together with the new seat, a locking mechanism made from seat post /
clamp couples the wheels so they can roll together when folded. Now
walking the bike is quite pleasant, kind of like a Brompton but
without the roller wheels...
http://www.youtube.com/watch?v=itKxrl2Syk0
Cheers,
Vi
============================================================
This is the Python Mailinglist
//www.freelists.org/list/python
Listmaster: Jurgen Mages jmages@xxxxxx
To unsubscribe send an empty mail to
python-request@xxxxxxxxxxxxx
with 'unsubscribe' in the subject field.
============================================================
Other related posts:
