Does the size of the opening in the center of a coil matter?

[tropes]

Hey Tropes,

I saw your video, what a beautiful motor you have. Great work!

Thanks for the info, every piece of information helps.

Hope all's well with you.

Thanks for the response.

RUKid
The motor is okay but my hope is to eventually have a "five coil" motor. My greatest accomplishment however is to have beaten cancer and in January I will be one year cancer free.
My motor is an attraction motor and after initial startup uses the current induced in the coil and the momentum gained to help push the magnetic pistons apart.
I have studied your rotory plans and must say I think you will have more success by repelling two rotors on the outer circumference rather than repelling on the inside.
Happy motoring
Tropes