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Want Free electricity? I have A solution! All of my life I have passed an old grain mill on the way to town. I would watch the big 14 foot wheel turning from the water. That got me thinking about two weeks ago, and I decided to make A much smaller, but still powerful electric water wheel. Today I'll be showing you how to build one of these from junk you can find for A good price or FREE! By the way, the water wheel was already built when I decided to make an Instructable, the pictures will be taken from the finished product.

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## Step 1: The Parts

The items you need for this electric water wheel are two bike wheel rims, (I was reCYCLING A bike. Get it?) an axle for the rims (I am using some old rebar that slides nicely in the bike rims) A pool ladder for the axle stand. Some sort of motor that will produce electricity when turned. (I am using an unmodified Razor Bella scooter motor and it works great!) Some plastic based rope. Some old roof tin, aluminum plates, flat wood panels, anything that will act as A flat fin to put in the wheel. Rubber tubing. A lot of zip ties. A small pully. An old extension cord. Electric tape. A container big enough to fit over the pool ladder. Various wood. ( Blocks, boards etc.) A knife. A hammer and some nails, pliers, tin snips or hacksaw. A drill and bits of various sizes. The total cost of this project was \$1.87 for the zip ties, so its not technically free. you can probably find most of the stuff needed at A junkyard.

## Step 3: Use It

Because my house is so far away from the creek, the voltage drop is significant. It does give me 5 volts continuously so that the is enough to power A cellphone, A lightbulb and you can probably hook up A voltage inverter to get 12 volts then from there 120 volts. You experiment and leave comments on what you come up with. Thanks for reading!

Participated in the
Make it Move Contest 2016

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## 6 Discussions

If you tap a length of steel tube to suit the axel threads you could utilise the wheel bearings, this would require lock nuts to prevent it unscrewing. If you arranged the direction of rotation correctly you could use the sprockets to extract drive for your generator although I appreciate the would also require a gearbox.

5 replies

That is A great idea, but the most advanced tool I have is my hand drill. ; )

I've few suggestions that might help there, plus I'd forgotten that the thread is some times cycle thread which I don't think I've ever seen a tap for.

1) using a section of tune that the axle is a snug fit in drill through the diameter of the tube and either fit a bolt/screw or a spiral pin through it a 3mm~1/8" should do it, drill the tube first then the axle once in position, and file a flat on the tube and use a center punch to get the drill to start, trying to drill round stock is a pain other wise.

2) get a section of tube that is a snug fit on the axle and file a slot in the side, file a matching grove in the threads of the axle and use a small u bolt clamp as a cotter to prevent the axle shaft turning in the tube. Having thought this over as I've been writing the other two I think you may need to use the u clamp to wedge a pice of square section or strip into the groove.

3) hammer a section oh hexagonal bar/ a bolt head the same size as a wheel nut into the end of a piece of tube to form a socket for a wheel nut and again use lock nuts. I think copper water pipe will probably do.

4) use a piece of square section tube the same inside dimension as the across the flats size of a wheel nut, cut a slot across it to form a crude 2 jawed socket for a wheel nut, the nut I've got in front of me is 13mm across the flats,16mm point to point so there should be something left of the sides you cut away, and if you make the other end 90 degrees out the open jaws will never both be straight up and down at the same time

I'll try and post an instructable on the third one, it is a problem that needs solving many of the wind turbine projects that got me on to this site are ruined by disgarding the highly effecient bearings in the cycle wheels they use

Let me know when you post it. I like your instructables.