One Plate Mechanical Clock

I designed this clock so that all parts comfortably fit within a 180mm x 180mm square. Just hit print and in about 6 hours, you will have everything you need for a functional weight-driven mechanical clock. It was a fun exercise in minimalism and a test of my printer's fine detail capabilities. In addition to the plastic, the clock requires the following:
1 x 200mm 3mm diameter shaft
1 x ~75mm 3mm diameter shaft
1 x ~45mm 2mm diameter shaft
3 x RC Helicopter bearings 6x3x3 (or 6x2.5x3)
1 x 450g weight
8 x coins - I'm overseas with foreign coinage, but quarters should work
~3m string - I'm using 550 cord guts since that is all that I currently have available
2 x nails to mount it to the wall.

It can run 1.3 years on a single wind provided you mount it above the Mariana Trench, but on my wall it goes over 12 hours. Doubling the weight with a pulley provides more than a day. I'd recommend using the larger frame should you decide to go that route. Tugging the coins outward s