Customized version of http://www.thingiverse.com/thing:488993

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=488993

Using the following options:

bevelringoutward = yes
bevelsun = yes
earing = 0
dplanethole = 3.5
cutoff = 0
mplanet = 5
dsunhole = 6.4
gcd = 3
cutoff45 = yes
ering = 0
$fs = 0.2
$fa = 5
bevelplanets = yes
eps = 0
eplanet = 0
dgroove = 3.4
bevelring = yes
0sunholeshape = doublecut
nringgrooves = 12
twistangleout = -60
msun = 9
clr = 0.3
eaxle = 0
dsungroove = 3.4
twall = 4
twistangle = 45
htot = 12
info2 = error modes
info1 = Note the tab bar above!
nsungrooves = 3
asunoffset = 0
eaplanet = 0
nadd = 4
ringshape = gear
npolygon = 6
dbase = 1.25
eaaxle = 0