Above is a picture of one of the magnet rotors. The rotor is 1/2" steel plate with 12 neodymium magnets "crazy" glued to it. The heavy steel plate helps to ensure that the magnet flux stays between the two rotors where it's needed to make power.
The next step is to encapsulate all of the magnets in epoxy, this serves two purposes. The first one is to make sure that the magnets stay where they're supposed to be. The second one is that neo mags are very susceptible to corrosion and being fully embedded in epoxy guarantees moisture stays out.
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