[python] Re: Elliptical chainring

Dear Listers,

I must mention the UK compayy Highpath Engineering who have been making very 
high quality oval (and round) rings for
20 years. 

See their products at http://www.highpath.co.uk/cycles/eggs/02.html.

They also shorten cranks etc if required.

I have no connection with them other than admiration for their product.

Happy Pythoning,

Dan Chambers <d.chambers@xxxxxxxxxxxxx>


Quoting Ronald Hongsermeier <rwhongser@xxxxxx>:

> Hi Daryl and listies,
> 
> rotor also manufactures some kind of unround rings. They call them Q-rings.
> 
> for those of you, who, like me, don't do spanish, go to the page Daryl
> mentions below, click on the little red Englis button and well keep clicking.
> The color choices for the website make reading a bit pinched...
> 
> interesting products,
> 
> ron
> 
> 
> > -----Ursprüngliche Nachricht-----
> > Von: "daryl bender" <darylbender@xxxxxxxxxxx>
> > Gesendet: 02.07.08 23:23:24
> > An: <python@xxxxxxxxxxxxx>
> > Betreff: [python] Re: Elliptical chainring
> 
> "The way Giles described"? 
> > 
> > I have Rotor cranks on my street machine and it would be interesting 
> > to try these with an elliptical chain ring. Sort of a double whammy 
> > effect!
> > 
> > http://www.rotorbike.com/
> > http://www.rotorbike.com/pdf/RotorSystemCrank.pdf
> > 
> > > Date: Wed, 2 Jul 2008 08:05:22 +0200
> > > From: ralf.weigel@xxxxxxxxxx
> > > To: python@xxxxxxxxxxxxx
> > > Subject: [python] Re: Elliptical chainring
> > > 
> > > Hi Ghislain,
> > > 
> > > this looks very beautiful, a nice piece of work....
> > > 
> > > Tough I do not own (or be able to ride) a Phyton yet, I've got some 
> > > other recumbents. I would like to try the oval chainring approach 
> > as 
> > > well. Did you make them yourself? The way Giles described, drilling,
> > 
> > > sawing and filing? Or was there a CNC milling machine involved?
> > > 
> > > Ghislain Pillet schrieb:
> > > 
> > > ---------snip----------
> > > > Thanks to Chainring Patterns from Giles Puckett
> > > ---------snap----------
> > > 
> > > Cheers,
> > > 
> > > Ralf
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