FlipTarget is a really simple shooting gear. It flips when the bullet hits target circle. To use second additional/experimental revolving mode you need to 3d print the base or settle it on the metal rod with diameter smaller than 4mm.
Layer Hight: 200-300 microns (0.2 - 0.3 mm)
Infill for base part: 50 - 100% in order to increase weight.
Material: ABS/PLA but much better (stronger) would be PETG or Nylon