Customized version of https://www.thingiverse.com/thing:53451

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=53451

Using the following options:

D = 50
T = 15
tol = 0.35
number_of_planets = 5
number_of_teeth_on_planets = 7
approximate_number_of_teeth_on_sun = 9
P = 45
nTwist = 1
w = 6.7