[python] Re: New python from Finland

  • From: david hout <bmwmadman@xxxxxxxxx>
  • To: python@xxxxxxxxxxxxx
  • Date: Fri, 30 Jul 2010 20:39:54 -0700 (PDT)

im still learning to ride mine. i dont have a trike to play with. im trying to 
work out a set of training wheels that can be unbolted later but have not had 
time. its very frustrating to not be able to ride the bike i built.

Reality is merely an illusion, albeit a very persistent one. Einstein

--- On Fri, 7/30/10, Pekka Pitkänen <pegalle@xxxxxxxxx> wrote:

From: Pekka Pitkänen <pegalle@xxxxxxxxx>
Subject: [python] Re: New python from Finland
To: python@xxxxxxxxxxxxx
Date: Friday, July 30, 2010, 1:49 PM

Thanks Torben and Rhisiart!

Today I made a new wooden seat which feels very promising! A few pics are 
waiting to upload to the blog. Gonna have a test ride this evening. 

There have been discussions in Finnish forum how to get over from the first 
embarrassing meters which eat gloves very much, some use short sticks, others 
wonder would it be reasonable to use stabilising side wheels or  use roller 
skates (or similar) in hands.

I wonder how fast that kind of a training back end will be seen in Finland, too!

Anyways, I started my recumbenting in 2001 by doing a copy from Esko 
Meriluoto's Hipparion trike which is also leg-steered.
http://www.nojapyorafoorumi.fi/viewtopic.php?f=2&t=40&start=90 ; the green one 
in bottom of the page.

Maybe it was a bit easier to learn python because of that, but still not easy :)

2010/7/30 Rhisiart Gwilym <Rhisiart@xxxxxxxxxxxxxx>

Congratulation, Pekka. Welcome to the Bruised Python-Learners club!




To help you learn quicker, and to be able to ride even on roads, Erik Wannee's 
'Training Trike Back End' is a key idea. See here:



 http://www.wannee.nl/hpv/oefentri/index.htm



Dirk Bonne told me about it, and being too far from Erik's place in Apeldoorn, 
Netherlands, to hire his trainer, I just made a quick copy. This has absolutely 
TRANSFORMED my riding. Before, even after weeks of trying, I could go scarcely 
ten metres on my bike-rigged Python before I fell over. Now, I'm doing 
twenty-kilometer rides easily, including stretches on roads with motor traffic. 
And I could ride the training trike immediately, the very first time that I sat 
on it.




I've just turned 70, so my sense of balance isn't as good as it was. But still, 
with this rig, the Python riding is easy. And the best is that I can watch 
myself catching the trick of balancing the front and middle parts -- just like 
the bike rig -- and internalising the learned reflexes steadily. By now I can 
ride along for a lot more than ten metres, with my hands just poised loosely 
round the grab-bars, but actually steering and balancing exactly as if I were 
on a Python bike.




Note that, though Erik's page about his training-trike back end is in 
Nederlandse, the pictures really make it all quite clear. All you really need 
to grasp is that the rectangular frame which holds the two back wheels is 
rigid, and stays upright at all times, and the two rearward grab handles welded 
to that rectangular frame also stay solidly on the ground, and upright at all 
times. But the whole of the rest of the rig leans and balances just like a 
bike. As Erik says, you can't really feel the difference. But there are always 
those two solid, unyielding grab bars to rebalance yourself instantly, as soon 
as you feel yourself losing it. Absolutely the key to quick, easy learning. You 
can just make out the fore-and-aft, horizontal-axis leaning pivots that link 
the back end to the rest of the cycle, on the first photo on Erik's web-page. 
That's the key!




I have a friend who runs a one-man bike sales, repair and recycling shop, from 
his canal-boat home. He's watched me crawling slowly forward with the building 
of my Python bike, and then the long, not-very-successful slog of trying to 
learn to ride it. So he was pretty sceptical about the whole Python idea. But 
the first moment that he sat on my trike rig, pedalled away, felt the beautiful 
soft, easy ride of the Mages DIY suspension system, and that extraordinary way 
that the Python steers and handles, he was completely converted. So much so 
that he's now offering to build bespoke Pythons for anyone who asks me where 
they can get one. Graham is a really good engineer and general fabricator, with 
half a lifetime solidly in bikes as a professional, so I know that his Pythons 
will be really good quality cycles.




We both think that the Training-Trike version is such a good rig in its own 
right that I'm tempted to just stay with it, as-is; and Graham also is asking 
me why I'd want to go back to the bike rig when I've got a trike as sweet and 
easy-ride as this one. I suppose I just want to be able to ride the original, 
pure Mages creation too. But I'm very tempted to settle mainly on the trike. 
It's such a great ride that I just can't get enough time on it. Got to try them 
both first though, before I can decide.




Good luck with your learning Pekka, whichever way you try it. Python's rule, OK!



Hwyl fawr,  RhG




Hello pythonists,



This project has been one of the best succeeded what i've been done, got 
"influence" in May, gathering bike parts from local junkyard and steel tubes 
came from friend's garage. In June I was lucky to have a place where I was able 
to weld everything together.




In July I finished the frame in my backyard and started to learning how to ride 
the damn thing! One hour per day it took 15 hours to convince myself that I may 
be able to ride somewhere else than on the empty car park only!




From now on I am counting kilometres, not hours. The Python has cost next to 
nothing, if we are not counting a beer case to the welding place's owners, and 
that's not much! Everybody just keep saying that "I want to see if you are ever 
able to ride that thing!"




Next thing I'm going to do is modificating the seat, the fabric is not giving 
enough support to my lower back and because of my bad back, it's got to be 
changed.



A little bit more fine tuning and welding and then some Hammerite black paint, 
and then... who knows? :D



Pekka


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