Customized version of http://www.thingiverse.com/thing:59075

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=59075

Using the following options:

export = 0
delta = -1
number_of_planets = 5
tol = 0.15
number_of_teeth_on_planets = 7
w = 2.75
P = 30
T = 15
D = 60
approximate_number_of_teeth_on_sun = 10
nTwist = 1
vtol = 0.5