Group: alt.energy.renewable
From: "Bob F"
Date: Tuesday, April 01, 2008 12:14 AM
Subject: Re: Farm Windmill - Converting up and down motion to circular?


"Glenn Jensen" wrote in message
news:ePCdnZCfgeGuJGzanZ2dnUVZ_vCknZ2d@sasktel...
> Hey There:
>
> I have a farm windmill that produces up/down motion, about 4 inches of travel.
> Any idea how to convert this action into rotary motion, so as to run a
> generator or alternator?
>

Connect it to a "crankshaft" with the same rotational diameter as the motion.
(Same as the one that generates the motion)