Re: Bigger-box VAWT failed so far... (3.00 / 0) (#13) by Norm (peppysue@suite224.net) on Fri Oct 19th, 2007 at 08:58:05 PM MST (User Info)

Ah yes! Then these, Look pretty spinning...I imagine 3 or 4 stack would run an alternator like Ed Lenz's education kit.  Then of course there is the coffee can one...it looked like it would work, was easy to build just coffee cans screwed to a square wood polebut it was a dismal failure....no overlap.          ( :>) Norm ( :>) Norm [ Parent ]

Re: Bigger-box VAWT failed so far... (3.00 / 0) (#14) by disaray1 on Sat Oct 20th, 2007 at 06:12:15 AM MST (User Info)

Thats alot of coffee Norm. Here's my modified wing coffee sav...  I keep changing it's profile to see what happens. Fun!  David [ Parent ]

from cereal boxes to coffee cans ! (3.00 / 0) (#15) by Norm (peppysue@suite224.net) on Sat Oct 20th, 2007 at 07:22:49 AM MST (User Info)

Interesting....do you realize that connected to an alternator like Pico Turbine (except with magnets like Ed uses instead of ceramics) you could be lighting maybe a White led?    How would 4 or 5 stacked on top of each other work?  You've right that is a lot of coffee about 1 can a month...they keep piling up they come in handy...    Is that 2 or 3 blades on yours? You just bend the flaps away from the rest of the cans right?    Guess I'll try that with a plastic Folgers can!    Thanks for the idea and inspiration.              ( :>) Norm ( :>) Norm [ Parent ]

Re: from cereal boxes to coffee cans ! (3.00 / 0) (#16) by disaray1 on Sun Oct 21st, 2007 at 12:56:54 PM MST (User Info)

I get a can about every three months...Doc said 2 cups a day max.  Two blades on this one and a three winger on the bench. The latest profile, "M" shaped..  kinda looks odd but works very well. The next two blade can will have the blades supported in the middle, instead of the trailing edge. Looking for lift.  Still having good, cheap, wholesome and caffeinated fun. :)  David [ Parent ]

Re: from cereal boxes to coffee cans ! (3.00 / 0) (#17) by Norm (peppysue@suite224.net) on Sun Oct 21st, 2007 at 06:17:30 PM MST (User Info)

Yes supported in the middle would be sturdier and slightly smaller diameter it might go faster Have you tried the threaded rod and nut method to see how fast it spins? Once you get a good design and stack enough of them on top of each other you would get enough torque and speed to drive a small stepper motor ....really !             Have Fun !              ( :>) Norm. ( :>) Norm [ Parent ]

Bigger-box VAWT on real PM gen failed so far... | 21 comments (21 topical, 0 editorial)

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