Quote:
Originally Posted by Sephiroth
it is much easier to start. Using magnets half the size i was using with 1 trigger (they were double stacked but now using just 1 layer) and have increased the gap between stator and rotor to 4 mm (was 1mm) and the sweet spot resistance is higher than i've got the resistors for at the moment! With one trigger the sweet spot was about 600ohms but now i have stuck every resistor i have on the trigger and it is now 2.4kilo ohms but i think the sweet spot is still higher than that.
Since increasing the gap the motor still spins at a several thousand rpm (no tach so just an estimate) and there is NO vibration from the mounting and the motor runs cold and silent.
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That is awesome

Actually this may be old news to you but I just figured that out. I made my coil mounting adjustable I had it as far up / close as I could get it to the magnets but the mounting was restricting me a little. I tweaked the design a bit and got the coil to just a hair away from the magnets! Now she is spinning like a champ much faster

I think I read that the faster the rotor spins the less amps it draws, so hopefully this should increase my efficiency. I have a 680 Ohm on it now but thinking of removing it and using my 1K pot to try to tune it again. And now I am also definatly going to add a second trigger, that should also help when I add my second coil. Also I saw laser tachs on ebay for about $20 I need to start accurately tracking speed in relation to efficiency.