| 1. Carefully we cut the plastic tube (bottle/PET) into two semi-cylinders at the wanted dimensions. Make the two blades of the turbine. The two pieces have to be identical. |
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| 2. Cut two circles in the lamina of wood. These pieces have to be perfectly round, to assure a perfect rotation of the turbine. |
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| 3. One of the wheels made of lamina of wood has to have a duct for transmission belt. |
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| 4. Make a hole exactly in the centre of the two wheel laminas for them to have a good grip on the bicycle hub. |
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| 5. Draw one middle line on each of the two wheels. |
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| 6. Place the blades on one wheels respecting the line. Mark the position with a pencil |
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| 7. Draw the wheel and the line that you draw on a piece of paper and put it in mirror on the other wheel. |
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| 8. Make signs in the place where the blades will be hanged with clips on the lamina. |
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| 9. Assemble the wheel and the laminas under the form of a vane wheel. |
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| 10. To assure a good equilibrium of the construction, it is essential that the middle of each wheel to be on top of the other. Place a wooden axel straight through the hole of the two wheels at 90° angle. Support the construction with a wooden frame. |
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| 11. Mount the bicycle hubs on the two wheels, place the transmission belt on the wheel with the duct and the vane wheel is completed. |
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| 12. Build the frame of the vane wheel,but don’t secure yet the top part. |
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| 13. The two hubs can be secured to the frame with the help of two identical screw nuts. |
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| 14. The assembly can be put on a pillar |
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| 15. Mount the dynamo on the frame and assure the connection with the transmission belt. |
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| 16. Our device – final form!!! |
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