How To- Wind Turbine Made From Scrap Metal...





Introduction: How To- Wind Turbine Made From Scrap Metal...

Green Living & Technology Challenge

Second Prize in the
Green Living & Technology Challenge

This is my first Instructable so bare with me.

This following Instructable is for A Wind Turbine that i Designed and Made out of Salvaged and Recycled Materials

Because of the nature of the materials,everybody building them this way will all be different,
don't let how i made this turbine affect how you make yours. build it with what you got.

Wind turbines are not only Great to make but if made right can be good source of electricity.

The way i will be using this Electricity is this.
The Turbine will produce a current that will be all over the place and that i will run through a 'Regulator"
to Convert it into a usable and steady 12v, this will charge a bank of batteries.
from this i will use an inverter to convert that battery power into a usable voltage (240v). from there its pretty straight forward. (lights. etc)

This is a simple wind turbine Design that i built in less than 1 day.
This is what it is made up of

MATERIALS(I cant really give any specific lenghs and sizes because... everybody is going to be different ... Its all Relative)

Blades (salvaged From an AIRCON)
Iron Rod (for extending wings)
DC Motor (salvaged From Treadmil)
Swivel Deck (i got it from a salvage yard. i think it it a wheel mount for a ride-on lawnmower)
Mast (Steel Pipe) (Pre-Loved ...of course)
Steel RHS (Motor Will be mounted onto this ... this will also be welded to the swivel deck
Directional 'WING' (sign writing material board) (aluminum Plastic Composite Panel)
BOLTS ( for mounting Motor to RHS)(and mounting 'wing to the mounting Angle)
Angle iron (for mounting Directional Wing)
Power Cable
Galvanising Spray paint

(ill keep this instructable just about the turbine for now so at this point i wont include all the batteries and
instruments like the inverter or the voltage regulator)

I should also mention This Turbine Project Costed Me 'Little to Nothing'


I used Basic Tools In building this Wind Turbine

Grinder (cutting disks and polishing/sanding disks)
Shifting Spanner (wrench)
Cable Ties
Spit and grit and a Whole lot of Duct tape
Portable Welder
Multi-Meter (Electronics testing meter)
Drill Gun
Drill Bits
Hammers (for hitting)
Tape Measure (For Measuring)
(basic tools needed for dismantling all material holding items)

This Has Been My Entry into the Instructable 'Green Living & Technology Challenge'
So once you have rated this instructable don't forget to VOTE

This Wind Turbine is Not only Effective in Producing Electricity it has been made at LOW (if Any) cost

Stay tuned for Power Output Readings


So i ended up not getting a tool for measuring how fast the wind was going, but on an average day is.
between 15-18 Volts and and up to 28-32 volts on a more windy day. ranges between 400 and 750W depending on the wind....

Being that it is relatively low. i feel this is a good effort for the height, but will start to build a bigger pole to put it on, Probably 25-30 feet or around 10 metres which gets it in the sweet spot.
where i work and the building surrounding creates a kind of wind tunnel that is perfect, i just need to put it high in the sky and watch it fly...

Step 1: Blade

i cut blades from an aircon.. i then welded them to a piece of steel rod which then welded to the center washer setup. 

Step 2: DC Motor

Thls Motor is from a treadmill Workout machine that was Destined for Scrap metal

When this Motor Spins it easily Produces power and with a Regulator ill just keep it at 12volts..

Step 3: Joining Motor to BIade Lt Is Simple As Just Welding the Two PiecesSetup

lts simple as Just welding the 2 together

Step 4: Join Motor to Swivel Deck.


Step 5: Mount Wing

Mount wing.(use Bolts)

Step 6: Extend Pipe Mast

Extend Pipe Mast by Welding more Pipe to the end of the short Piece.

Step 7: Mountingl Welded the Mast

i welded the mast straight to a sea container roof structure.

Step 8: Conclusions

this project took Me less than a day to make. I think any Body can Build these things And the only thing limiting Design is your imagination.

 this has Been My entry into the 'green projects,' Competition.

I should also mention that I didn't pay for a Single thing. I salvaged it ALL!



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    Thats just beautiful man!

    Well done Push. Impressive..most impressive... :)

    Great job! Congrats.

    Only just found this project and I think it is great. You mentioned a regulator, do you have any brands/models you could name as I'd like to build something similar to trickle charge a caravan 12v leisure battery. Thank you.

    Thanks for the simplel, uncomplicated approach. In my 6 decades i've observed that the more technology gets thrown at stuff, the more inclined things seem toward breaking down. Then - you need to hire a specialized expert or replace specialized equipment at greatly excessive cost.
    Keeping it simple makes repair, replacement, or improvements so much easier.

    And how do you beat that free part?

    That 's a KISS (keep it simple stupid) project and i like it also, cool for distant islands.

    Thanx for sharing it

    Could the same thing be done with a car alternator?

    What do you use the turbine to power?

    Thanks for sharing :-)

    i find that 'permanent Magnet DC Motors' (like the one i have) work better.
    ive tried and failed with the car alternator (unless you find a super efficient alternator)


    Generators and alternators have similar efficiency when driven off a power source that can always turn them above a minimum RPM (eg. car engine). I think the problem is that the blades here are too small to turn an alternator directly, perhaps running the power through a gearbox would help, or maybe there is just too little power to do this, as an alternator uses a steady amount of power for it's magnetic field. One thing to note is that an alternator does require power to make power, it relies on electromagnetism to generate power, as there are no permanent magnets inside. If you turn an alternator and it doesn't have power at the field terminal, it will create NO power, no matter how fast it is turned.

    I suspect that if you were to run a bit more voltage to the field terminal (if it's a separate terminal, some are linked to the output terminal internally) the efficiency would be greater. This would require extra parts and a bit more know-how to build a DC/DC voltage converter, or lose some efficiency running an AC/DC transformer/rectifier. Just a thought, and it may be incorrect too.

    Alternators are very efficient and can produce a hell of a lot of power if setup right. To get it up to speed, you can use gears, belts, etc.

    All you need is a little 9v lamp or so such as the indicator lamp to show the alternators getting power when you turn your ignition in your car - connect that to the positive terminal on the alternator, and the output to a battery you want to charge, then connect the case of the alternator to ground (battery negative terminal). When spun to a certain speed (not very fast) you'll see the lamp go out which indicates that the alternator is powering itself and doesn't need a power source to excite it's magnetic field on the rotor any more.

    I thought of an idea where if you have a resistor in series with a relay, so that lets say, if the battery voltage drops below 12v, it'll turn off the relay since it cant get enough power, so then the alternator will charge the battery back up. This is just a suggestion.

    And yes, with an alternator you still need a battery to make it self-excite, but at least it generates a hell of a lot more power than what you put into it.