Learning clock

Here is a clock mechanism I designed for our son. He loves to watch the clock hands move, learning digits and numbers, counting, and the relationship between the minute and hour hands

M3 threads are cut into the holes of the hands and gear axles, and they are mounted from behind using M3x8 screws and large washers. Any remaining support material in the mounting holes should be thoroughly removed so that the minute hand can turn smoothly. The handle should be glued into the hand, but it must not protrude from the bottom

The small gear has a notch on the back. This should point upwards towards 12 when assembled, along with the minute and hour hands