cool. My design isn't really the best. If I had it to do again i'd make the shaft shorter for sure, but its good in some other ways. Easy to take apart.
Keep in mind too that the windblue will take a while to break in. Over a period of a month or more of running 24/7 the voltage kept going up -- as it got smoother (less mechanical resistance i suspect).
So you can expect it to get better and better for a period after you make it.
best of luck & thanks for checking out my half-arsed system!
-zachary