3D Brushless Motor

Based on this.

I would like to replace the 3d printed filament with a ferrite/epoxy core. I think it would be stronger both physically and magnetically. I'd like to print the bearings as well. Something like this, though it might make sense to use pre-made ball bearings. It may also be feasible to melt hdpe and use a ball bearing mold made of plaster to create accurate bearings.

It's not called out in the video, but it may make sense to