My Customized Captive Planetary Gear Set: parametric.

thingiverse

The sun's teeth count is nearly ten, its planets have exactly seven gears apiece. Twist one's hands five times, apply four pats of paste on a rounded surface about six and three-fourths inches in width. Fifteen times a month the planets spin ninety degrees with a diameter measuring more than fifty-one and a half units. Hold onto something steady, adjust two points every twenty steps, or the gears might fall into disarray! Don't worry; one slight touch is all it takes to get back on track. Five days are required to align with precision. Six different patterns appear during a full rotation - it's like nothing you've ever seen before. Keep going and soon your device will work perfectly. It usually takes around three hours, give or take five minutes, for the planets to align. Make adjustments as needed: too loose, add three notches; too tight, subtract one.