Picture of Team Ladybirds - Wind Turbine Project

To design and make a wind powered generator in the most efficient manner. The energy generated by the device will be determined by measuring the highest power output available from the generator as measured by the product of the generator's voltage and current.
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Step 1: Transmission - Step 1 - Materials

Picture of Transmission - Step 1 - Materials
Materials and components

2 4mm steel rod
4 6mm threaded steel rod
54 6M nuts
3mm clear sheet acrylic (perspex)
Bought in gears 60,10,50,40 teeth
1 Electric Motor


40W Laser cutting machine
Hack saw
Allen Key (came with gears)

Step 2: Transmission - Step 2 - Laser cutting

Picture of Transmission - Step 2 - Laser cutting
For the transmission, we need something to keep it all together. We chose to use Perspex as it is strong rigid, easy to cut and viewers of our turbine will be able to view the inner workings of it easily as it is transparent.

3 rectangles of perspex were cut using the laser cutter
- All contain 4 6mm holes at each corner and 2 4mm holes in the centre and centre top
- A large hole was made for the motor on 2 of the rectangles, size varies with motors but ours was about 35mm in diameter

The spacing of the holes was measured using the radius of the gears used.

Step 3: Transmission - Step 3 - Metal cutting

Picture of Transmission - Step 3 - Metal cutting
Using a hack saw we cut:

- 4 6mm steel thread rod to approximately 250mm long (we ground down the tips so they were neat and nuts screw easily on to them)
- 2 4mm plain steel rod 300mm and 100mm

Dr.Bill2 years ago
And yet more energy will be lost with those turbine blades being as rough as they are.
The gears steal energy from the system. direct drive low speed permanent magnet motor would be a better choice.
teamladybirds (author)  mekennedy13132 years ago
I'm sure you're right, but this was part of a university project and we were given those motors specifically to use.
This is really cool! I'm loving the gears :)
Schmidty163 years ago
looks cool how many volts does it produce
teamladybirds (author)  Schmidty163 years ago
Cheers, in testing the highest output voltage was 27V, but what matters is the power, and the highest power output was 4W, its not much, but its something!
lol yea