Geneva mechanism 26

Input: orange gear shaft. Output: pink shaft of Geneva disk. The output rotates 90 deg. and pauses 4 times in one direction, then does the same in the opposite direction. All the small gear (in orange and beige) have the same tooth number of Z1. Z2 = 4*Z1. Z2 is the tooth number of the large gear (in blue). The orange input gear engages with the blue and the beige gears. The blue barrel cam (fixed to the blue gear) controls the motion of two green crank shafts, which come in turns into engagement with the Geneva disk. The green shafts can move together with the yellow sliders in axial direction thanks to the blue pins that engage with the circular grooves on the green shafts. The red springs prevent axial displacements of the beige gears. STEP files of this video: Inventor files of this video: