Extruder Rotational spinner

cults3d

I found all kinds of rotational spinners for extruder motor, but none with an easy method to secure to center shaft of motor. I took one from PrusaPrints, Used Fusion 360 to add a 5mm shaft, then created a socket for a small magnet to secure to the motor shaft. created the socket for a 1.5x5mm magnet, which I glued into place. It is easy to attach and remove and gives a great visual indicator of the extruding of filament (also shows retraction!)