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Finn Lassen wrote:
I do wonder what the weight of the stator ring and magnets are.
The stator is probably a pound. Two at most. I know mine doesn't weigh much. My rotor uses iron magnets in a 0.100" thick housing. It is fairly heavy. Using rare earth not only makes for lighter magnets, but also a lighter housing that doesn't have to contain as much centripetal force. If the rotor housing is made of aluminum, I bet the whole affair is under 5lbs.
A coupe of other factors: I don't like the high-power resistors. I would seem that one could make an efficient switching power regulator that would not waste power in resistors. Also, the electronics being in the housing may be an issue. I assume the housing will be the same temperature as the engine and thus it may be more difficult to get rid of the heat from the electronics (if using the housing as a heat sink).
I don't like the whole electronics package. Power resistors may be used because of the heat issues you mention, so I think that can be forgiven. What I can't see past is the circuit board that looks like a cheap epoxy RadioShack prototype board, with wires sticking out like a Rastafarian hairdo, the complete ignorance of proper strain relief, and ridiculous lack of sane wire routing. But, that's just me.
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