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#1
posted to rec.boats.cruising
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Build-it-yourself wind generators - Mic
Non-marine or build-it-yourself wind generators:
http://www.geocities.com/bill_dietri...tion.html#Wind http://www.dragonflypower.com/DragonBlerb.htm http://www.otherpower.com/ http://www.lookout2000.com/windpower/ "From Brian Engelke on SailNet liveaboard-list: our DIY wind generator: Just to show you all how easy this was: generator pics Images of this build at http://community.webshots.com/album/96862239oyxJMN Body of generator - scrap acrylic plastic = vane blade 1 1/2" pvc and cap = vane blade arm 4" PVC and cap = motor body and end scrap metal box fan hub = blade hub 1/4" x 3" x 24" wood = blade scrap 2" whisker pole stock = mounting pole scrap bimini 7/8" aluminum stock = mounting pole struts scrap 30 VDC permanent magnet tape drive motor = generator motor scrap industrial strength caster = pole/body swivel The scrap motor came from www.siliconsalvage.com for $20. These motors are great and charge at very low RPM. The rest of the parts I either had or bought on sale and it totaled $95. I studied blade design on the web and carved and sanded those from scratch. For this motor, the sweep area of the blades showed that the blades needed to be 24" long and tapered so the balance point if holding one on your finger should be 25%-33% from the mounting end to the outside tip. This keeps the centrifugal force working for you as opposed to slowing the blades down. I also used a postage meter at work to sand them until they were within .05 ounce of each other so at higher RPM they don't create vibration and tear the whole unit apart! I am no genius, so anyone can do this! The hardest part was definitely trying to get the mounting pole level straight up and down on a rocking boat!!!" |
#2
posted to rec.boats.cruising
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Build-it-yourself wind generators - Mic
Nice work Mic! Were you able to quantify the output?
Cheers, Jim |
#3
posted to rec.boats.cruising
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Build-it-yourself wind generators - Mic
Here is another resource.. I will probably end up going with the Hornet
wind turbine... http://www.hydrogenappliances.com |
#6
posted to rec.boats.cruising
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Build-it-yourself wind generators - Mic
On Thu, 30 Mar 2006 13:00:44 -0500, Wayne.B
wrote: On Thu, 30 Mar 2006 17:25:02 GMT, (Mic) wrote: as a regular voyager on the cyber seas, I find that the treasures uncovered actually increase in value as they prove useful to others. If you gain some experience sailing on the non-cyber seas you will also discover the value of reliability, durability and good product support from a manufacturer. That said, I found...... It has been said before and worth saying again: "Quick comment. When I see ad hominem attacks like this, I ignore the rest of the post as irrelevant." "This list has a pretty good signal/noise ratio for Usenet and I'd like to keep it that way (or improve), as it's where I get some of my best info." __________________________________________________ _______ "I wouldn’t claim the long experience of the Dashews, Pardeys, or other fonts of nautical knowledge, but as a regular voyager on the cyber seas, I find that the treasures uncovered actually increase in value as they prove useful to others." Actually this quote came from http://tinling.typepad.com/about.html So maybe your comments ought to be directed at them? But I do appreciate the effort that person made in their effort to broaden sailing knowledge which comes without a condecending attitude;}} Fair winds Mic '67 |
#7
posted to rec.boats.cruising
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Build-it-yourself wind generators - Mic
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#8
posted to rec.boats.cruising
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Build-it-yourself wind generators - Mic
Mic wrote:
[snip] http://www.lookout2000.com/windpower/ i would like something like this one (but smaller of course) ... it has some features i would want. i would want it to use a normal alternator making it easy to fix with parts from a junk vehicle anywhere in the world. i would also want it to use a belt system so you could easily change the belt and/or diameter of the pulleys to get the right ratio to spin the alternator at the right rpms for average wind speeds. the belts and pulleys, again, available anywhere there are automobiles. i wouldn't want a gear system to change the ratios since that'd be one more thing you might have to order from halfway around the world and ship .. time and money wasted. i think an important improvement would be to have a metal eye on the tail of it so you can pull it around out of the wind to stop the blades ... and a simple "one big bolt" type of design for removing the blades would be nice too, kind of like the one that holds the cam shaft sprocket for an engine's timing chain. if it had that you could remove the blades whenever you wanted to, if a big storm was coming up or something you could just use the eye to turn the blades out of the wind, secure them with a rope or something, and if you wanted you could even take out the bolt and put the blades in the cabin. i don't know if there is such a thing sold ... i would imagine most manufacturers just sell basically a one piece kind of deal with specialized parts. that does have the advantage over the belt system of being enclosed in fiberglass, but i don't think that's enough of an advantage to make it better. |
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