Bullzeye Clock

The Bullzeye Clock is a penny weight driven mechanical gear clock. It is so named because the face looks like a target and the pendulum is reminiscent of an arrow. It should run for about 8-12 hours depending on your string length.

Penny_weights.stl is from the MakerBot Clock http://www.thingiverse.com/thing:18214

Aside from the 3D printed parts you will need:
4 feet of nylon string
$2.50 in pennies
1/16 stainless steel rods (~1.6mm)
3.5 feet (about 1m) 3/16 wooden dowel (~5mm)

The pinions are superglued to their corresponding gear numbers but the spacers are not glued. gear1top is glued to gear1bottom and the nylon string is wrapped 1.5 times around the drum with the counterweight on the left and four penny weights on the right. Make sure gear1 is tight with the rod and rotates it while the other large gears are loose and rotate around their rods freely. For the hand gears only gear10 is tight and turns with the shaft while the other gears are loose. You may want to