Yoyo Fidget Spinner

Pull the rope until it starts winding up. Repeat that until your fingers refuse to do that any longer.
https://youtu.be/YPYXvaT0mF0
The core has a wider part which should clamp in the ball bearing. The smaller part runs free in the rotor which is printed with support, ball bearing opening down. Removing the support structure is relatively simple. Compared to the picture, rotate the X-axis over 180 degrees.The pin is closing the structure and clamps in the core. The six nuts are M8. As the vide