I have a motor out of an waxer/buffer and I was wondering what improvements neodymium magnets would be. I have a couple plans for this motor, the first being for a temporary ball mill, and the second for a generator. I am pretty sure the neodymium would be good for a generator, but what about a motor. I am also wondering what magnets to get. Should the north pole be the outside, south pole be the outside, should it be magnetized thru circumference, magnetized through thickness, or south on one side and north on the other.