[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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