V-Gate magnetic motor drum

I want to try and recreate a printed version of this V-gate motor and while i dont expect it to run forever i want to try and make it as efficient as possible. It takes 608 skateboard bearings.
Please see the below video
I want to try and recreate a printed version of this V-gate motor and while i dont expect it to run forever i want to try and make it as efficient as possible. It takes 608 skateboard bearings.
Please see the below video