I have made various pulse motors on my learning journey - the last generator I made was great and a fair amount of output but fell short in many areas.
I am learning by doing. so the aim here was to make something that was sturdy and able to be changed with different coils / rotor configurations without anything breaking / falling apart.

Advantages of my new design
Coil Sections are independent and removable
I am now making the most of the magnetic field - two sets of coils per rotor
stackable - we can stack as many units as you want on one drive shaft.
geometry of the rotor and coils - 6 coils and 6 Magents = All coils are "firing" the same time. the last generator had 6 coils with 4 magnets on the rotor and that = 2 coils firing at one time.

RepRap

Prusa i3

No

No

0.2

100%

Infill 100% on the Coils and the Inner Plates - otherwise std 20% will do.