Mechanical Clock (remix)

Update 24/08/23
I have updated both the main Arduino program (MC1) and the Interactive Calibration program.
I noticed that, occasionally, the cams seemed to "lose" their position and a power on reset was needed. I eventually traced this down to the Servo library (still no idea what exactly happened but it was 100% due to the library).
So I we-wrote the routines to drive the servos eliminating completely the servo library.
As a happy benefit the clock movement is now MUCH quieter.

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Shiura's mechanical digital clock was an awesome project.
My remix does a few changes to some of the 3D printed parts but a lot of work on the electronics (my field) and the arduino software.

Changes:
* Removed the holes from the top of the digit frames for a cleaner look
* Complete makeover of the clock base to house my electronics and give digit separator colon
* Remix of the cover box