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Green Science Windmill Generator by Toysmith
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- Contains 1 rotor, 1 front-housing with gear and rotor shaft installed
- 1 back housing, 2 half screws caps, 1 toy motor with gear (generator)
- 1 motor cover, 8 small screws
- 1 LED with wires and detailed instructions
- Age 8 and above
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Description for Green Science Windmill Generator by Toysmith
Build this amazing and wind generator and learn about renewable energy. Watch the LED glow as it is powered by free energy from the wind. No batteries required!
Top customer reviews
Most helpful customer reviews on Amazon.com
1st, they provide a detailed instruction sheet and it is simple to follow. They "clearly" show the RED wire at the bottom right rear and the BLACK on the other terminal. After assembly the light would not light up. As an engineer, I immediately started trouble shooting and found that if it was spun backwards the LED would light up. Of course being thorough (they recommend twisting the wires which I just can't live with), had to "de-solder" and then re solder the wires to the opposite terminals. Using our shop air compressor system and 40 PSI the LED lit very brightly.
2nd, the bottle cap adapter that they recommend adding oil to is molded with too high of a tolerance. To fix this problem, I sanded the very top edge until it was smooth (there is a very definite ridge ring that can be felt around it that is unnecessary). After that it easily spun around as it should.
I've added a picture showing the 2 steps above.
So, in the end, definitely an excellent product for learning and and the price is very reasonable. If it hadn't been for the extra work it would have been given it all 5 stars.