Summary

This is not really a Remix - it's more of an add on.
The very fine Hollow Clock V that you see is 100% shiura's design https://www.thingiverse.com/thing:6647784
My addition is simply the base that the Hollow Clock stands on.

I needed a base because after printing and assembling the Hollow Clock I felt I wanted to control the clock differently and needed a place to house additional components such as the Arduino Nano that I would be using.
I did not want to affix the base to the clock so, to this end, it simply slides on.

The Hollow Clock requires 15 360 steps of the stepper motor to advance 1 hour.
I decided to drive my clock 64 steps every 15 seconds.

1. I did not want to rely on the processor for the base timekeeping if the sketch included delays and the like so I came up with two solutions.
   a) a sketch with instructions specifically arranged for accurate timekeeping using the processor crystal
   b) stripping the clock module (crystal and IC) from my quartz wall clock in my office and using that to provide 1 second pulses for timekeeping. Using this provides accurate timekeeping over extended periods, even more that the original wall clock. This is because the supply voltage is now constant and not continually decreasing as the case with the original battery supply - https://sound-au.com/clocks/timebase.html

2. I wanted FF Fast Forward and FR Fast Reverse controls to allow for easy clock setting.
   With this you simple set the hour hand to the desired hour and the minute hand to the 12 o'clock position and the use the controls to set the time.
   There are WiFi options too for time keeping.