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Re: [EVDL] 9" adv Aluminum feild coil housing ?

You can't get anything for free. But take a look for SEMA motor. IIRC,
this stands for Segmented ElectroMagnetic Array.

http://www.lynxmotiontechnology.com/introtosema1.htm

I believe they eliminate the back iron by useing air coils. You can
create a greater magnetic field than a saturated core would allow with
air coils by pushing more current through. Torque/lb of motor goes up,
but so does the amps.

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