Square mystery clock modifications

What I changed

• I did not want to paint the hour hand.
  • I split the hour hand from its gear so I could print each in its own color.
• I did not want to glue the gear train together. 
  • I added a pin hole at each glue point and inserted a sewing straight pin cut to appropriate length.
  • I added a threaded extension to gear3 to attach another M3 nut to help weight the gear train down.
• I wanted to block the bright red LED at night.
  • I designed a cover to fit over all of the electronics.
  • I mounted the Nano to the stepper board with a small piece of PCB board with holes in it to mount to the cover.
  • I made a box area to hold optional 9V or 6V battery.
• I needed a tighter fit on the stepper motor gear.
  • I made a slight dimension change to the shaft opening.

Shiura uses Blender; I use Fusion 360. Fortunately, I was able to import the key parts of his design so I could make the tweaks.

The print times and print files are only the changed parts. All other parts are original and not included here.

This is an excellent design and I had a lot of fun making it and modifying it.