Cake Decorating Machine

Input: blue carrier.
It is a combination of satellite gear drive and sine mechanism.
A pastry bag attached to yellow slider pipes green star on a cake (not shown).
Height of the star petal = two times of the pink crank radius.
Number of the star petals N = Zg/Zp
Zg: tooth number of grey gear.
Zp: tooth number of pink gear.

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