I think Dan's book is the best. Better than ours, but there is a place for both. ... As long as it's axial flux, it's on topic. Steve Spence Renewable energy...
Tom C. I don't think he is out of line at all This is a group to help others. Keep that in Mind prior to you belitteling someone with An off the wall idea. ...
I agree Neil.. I think the thing that makes these groups interesting is the fact that everyone tries something different, or is interested in something...
Hey, Swizzle, the first PM genny I made was some small magnets like refrigerator magnets super glued to a steel plate made from an old disc drive cover that I...
I was checking out a few more designs and I'm thinking about going with the LENS design. I signed up on another forum as well so I'm not asking to many...
Sorry guys ...my apologies... I retract ... didn't mean to ruffle feathers. If you want to read about wooden discs and steel drum lids go ahead. I am also here...
You are right of course. Wooden disks and metal garbage can lids would not work at all. You need that mass of steel to complete the magnetic flux. Steve Spence...
Actually Tom, it depends on what you want it to do. They won't work for the large ones like most people build for powering a house but if all your trying to...
The hugh piggott style which this group is patterned after is fairly set in stone, for physics reasons. why is reducing weight more of a goal than optimizing...
Keep in mind that this group concentrates on the hugh piggott style axial flux. Steve Spence Renewable energy and self sufficiency http://www.green-trust.org ...
I was figuring that the weight reduction would allow for faster rotation and more output. It just makes sense to me. Isn't it easier to push a car then a...
The plates don't weigh enough to appreciably affect startup. these things rest on bearings that enable them to spin easily. We encourage the hugh piggott HAWT...
hi You would be surprised how many people think in a mathematical box ALL the time. When you rake leaves into a pile you automatically estimate the weight in...
That continous flux is a good thought but confusing to me. Wouldn't the best setup be two magnets on a steel plate sized to fit with a gap to the next two be...
Neil- Can't quite visualize what you are proposing- is it something like having horseshoe magnets arranged in a torus, with the stator in between the horseshoe...
I am in southwest Louisiana. I am interested In building an axialflux wg but have a few questions. 1st let me say I run a small rural wisp and have a very...
1/4" steel plate is cheap, and functional. You can get a pair at http://www.forcefieldmagnets.com/catalog/index.php?cPath=22_30 for $80 Steve Spence Renewable...
Morning, Tim: what I'm thinking is like having an open book (thats the iron plate) with one magnets south pole down on the left hand page, the second magnet...
Steve, what would 5mph start up do for The design ???? We've got quite a bit of 5-10mph winds Above 30meters here. If I could design for 5mph startup then We...
at 5 mph, 9' blades might put out 35 watts. run your own numbers at http://www.green-trust.org/windpowercalc/ Steve Spence Renewable energy and self...
To determine tsr, you need a few things. Tip Speed: radius (blade length) distance (2 * pi * r) tip speed = (distance / time(s) ) The blades travel one...
Steve, ever wanted to do something so badly you end up Frustrated b/c the #s never work out ? LOL It's not looking good for the hometeam unless I were to go...
Steve I know how to calculate TSR, I referencing the example you gave ! "at 5 mph, 9' blades might put out 35 watts." What was the TSR for that setup and also...
It's a theoretical machine. He hasn't built one yet. I don't know the rpm, blade length, or voltage of a machine that has not yet been built. Steve Spence ...
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