An application of Ferguson’s paradox shown at:
https://youtu.be/Paw4aKYjtb0
Input: pink gear of tooth number Zp = 20.
The pink gear engages with grey and green gears.
Tooth number of the grey gear Zg = 20.
Tooth number of the green gear Ze = 21.
Grey cam is fixed to the grey gear.
Green cam is fixed to the green gear.
There is a relative rotation between the cams (very slow, 1/21 rev. in 1 rev. of the input).
Different relative positions of the cams make the blue follower strokes change after every in
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