This is a motor visualizer like a turbine.
The model consists of three parts: the propeller, the tip and a connecting pin. It mounts interlocking.
It has been printed in PETG with nozzle 0.4mm, layer height 0.15mm.
The tip should be printed with variable height layers to get a more beveled surface.
It is necessary to use a magnet diameter 6mm, height 8mm.
Among the available files there is also a smaller propeller that attaches to the X axis motor.
The author hasn't provided the model origin yet.