Stackable Coke bottle windmill (VAWT) for bottle dynamo
by Ktronik, published
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Real Quick and simple to make, VAWT for charging of AA batterys and USB stuff.
Print out STL and recycle or drink 6 / 2lt coke bottles, cut each in half leaving the screw neck intact. Load into coke bottles into holder and press fit onto a 6V 3W bottle dynamo, this one is made to fit a bottle dynamo I allready had.
stack them on top of each other to get the power needed, for a given wind speed.
With load matching circuits we could boost the output to around 5w.
could also make big stack, and finish with another bottle dynamo on the other end, I will make a endstop version of the block so you can have big stacks and 2 bottle dynamos. ~ 10w boosted
you could probley go down to your local bike shop, and get find a few that they have not tossed out. I did and got a crate full!! for the sake of some plastic, your 3D printer, and a few recycled bottles you can charge you AA batterys and USB stuff with the circuits I have. Electronics would be less than $5 to buy parts for a AA charger and USB charger.
I will make a hub dynamo version soon, and add the 'base' to hold common dynamos, for being driven from the coke bottle VAWT
NOT PRINT TESTED
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Stackable Coke bottle windmill (VAWT) for bottle dynamo by Ktronik is licensed under the Creative Commons - Attribution license.
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