[python] Re: Elliptical chainring

Hi

I asked Rotor about using the Q rings on the Rotor Cranks some years ago and 
they said they don't go together so it was one way or the other. BTW the link 
was for the master site. Rotor also has a subsidiary US page;

http://www.rotorusa.com/i1-rs4x.shtml
http://www.rotorusa.com/i1-q-rings.shtml


I did find Giles' page through some surfing though

http://www.fleettrikes.com/giles%20puckett%20sprocket%20calulator.htm



Cheers
Daryl
----------------------------------------
> Date: Thu, 3 Jul 2008 08:18:23 +0200
> From: rwhongser@xxxxxx
> To: python@xxxxxxxxxxxxx
> Subject: [python] Re: Elliptical chainring
> 
> 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" 
>> Gesendet: 02.07.08 23:23:24
>> An: 
>> 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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>> 
>> 
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