Generating electricity with a 3D printed hand crank mechanism
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updated November 29, 2023

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Well, I finished making it, but I only get output of 14-16V max (8-9V under load) with 0.2-0.3 amps. Coils are 4 in series, 2 in parallel (I wanted higher voltage).

I understand my wiring is different and I should get half the current of Tim’s due to doubling my voltage, but the total power output is a mere 3W with me cranking for my life.

What could be going wrong?

Not sure if this is a problem, but after cranking, my voltage from the internal capacitors goes down at a rate of about 2 volts per second. (edited)

@einichi_862656

Things I could think off:

-Check if the two rotors placed correctly opposite of each other. The keying of the shaft only allows 6 positions and the rotor has 16 magnets. so this needs to line up correctly.

-Make sure the OUT-going wire of the first coil is connected to the IN-going wire of the sec coil. (and the 3rd and the 4th).

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