Your parts look great. You’ve done some good finishing on the mold parts. One more note about casting hard plastics: if the mold is not smooth enough, the parts can stick.
it might be a good idea to add ejector pins.
What kind of casting resin are you using? I use Smooth-On(elastomeric and hard plastics).
Can you post some info about your casting setup?
I use a pressure pot/vacuum chamber, which limits part size(it’s made from a paint pot, which was inexpensive, but works for smaller parts)
The mechanical test of the rotor is pretty impressive.