Input: blue crank.
Output: green disk
The pin that interacts with the disk slots is placed on the satellite pinion (in pink). Its center traces yellow line.
Zg/Zp = 2n/(n-2)
R + r = B.sin(Pi/n)
Zg: tooth number of stationary grey gear. Here Zg = 80.
Zp: tooth number of pink gear. Here Zp = 20.
n: number of slots on green disk, Here n = 4
R: distance from axis of the pink gear to rotary axis of the blue crank.
r: radius of the pink crank.
B: distance between two stationary bearings.
Blue ring is for keeping
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