what is 12-10-8 winding?
It has something to do with the number of poles vs coils. An example, with the 9 coil 12 magnets per rotor design we end up with the total number of magnets @ 24, with the dual rotor, now, bear in mind, that the axial design is designed to produce a 3phase output, via the 3/4 or 9/12 coil to magnet ratio.
Offhand, I would expect you need 12 magnets to 10 coils(five phase?) and 8 as a wire gauge( 8 gauge wire seems pretty heavy). Im making a leap here and could be totally wrong, its happened before an could happen again : ) But im fairily certian Flux would be happy to explain the relation of poles with my basic understanding of this, Im thinking this thread may graduate to the FAQ section.
When dealing with a "radial design", such as a motor conversion your options will be limited to the stator flux core (steel laminations), meaning you can complete the magnetic circuit, with only one set of magnets on the rotor.
JW