Materials used:
4 mm carbon fiber tube
0,1 mm wire (approx 150 m)
30x50 mm 5V 0,03A solar panells
Some epoxy
gel pen tip
3 and 4 mm plywood
3 mm PMMA
Ø30 mm stator magnet
8 pieces Ø10/4 mm rotor and suspension magnet
2 rubber bands :)
Rolled 526 turns of 0,1 mm wire to meet internal solar's panel resistance (~ 167 ohm). Counting is a real challenge. Get rid of the kids for few hours before starting :)
https://www.youtube.com/watch?v=YGt5Nx_Iwrg
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