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What do i make my blades out of on my mini wind turbine?

MIni wind turbine blades: Hi I am 12 years old and my hobbie is building and electronics. I am making a MINI WIND TURBINE that has to be waterproof. I am making it out of an old wind up torch. Everything is covered apart from the blades. I do not want to spend any money and buy one of the internet and i cannot really use metal because it is a mini wind turbine. I live in england and i do not have a local hobbie shop near me so any ideas will be apreciated. (if thats how you spell it)

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rickharris5 years ago
OR you could cut up a milk carton (plastic) and form blades out of that fixed into a wooden hub by cutting a slot in the hub and putting a screw through to hold the plastic blade.
Or you could use a square of plastic milk carton to make a pin wheel type blade.

Like these

https://www.google.co.uk/search?tbm=isch&hl=en&source=hp&biw=1920&bih=960&q=pin+wheel&gbv=2&oq=pin+wheel&aq=f&aqi=g-s10&aql=&gs_l=img.3..0i10l10.1904l3418l0l3698l9l9l0l0l0l0l136l1013l3j6l9l0.frgbld.
Guitarmanandy (author)  rickharris5 years ago
Not really right for my turbine.
Guitarmanandy (author)  rickharris5 years ago
The milk bottles are wierd shapes
iPodGuy5 years ago
There's an i'ble here that makes turbines from PC fans.

They used I believe it was a shampoo bottle to make some really slick fins. Looked nice and I bet they work well.
Guitarmanandy (author)  iPodGuy5 years ago
Yeh but my shampoo bottles are thin plastic and wierdly shaped!
lizzyastro5 years ago
How about a bent wire frame (old coat hanger) covered with light weight fabric (outgrown school shirt) and then painted with gloss paint. There is always a tin of left over paint in the shed or garage :-)

You can be as fussy with the frame/former as you like to get the correct angles for your blades and none of the above should cost you much if anything.
Guitarmanandy (author)  lizzyastro5 years ago
That sounds like a great idea! thnx