3D Scanner (Arduino based)

Finished mechanical and programming parts! (2020-10-26)
----------------------------------------------------------
There is the video:
https://youtu.be/oBQA-LoEnVc

At least - the end of work. There still are minor mechanical issues (will solve with sand paper :))
Last changes - minory changed code. +5V for drivers directly soldered to the input power of the arduino.
And, of course, still waiting for better camera with short focus and wide range objective.

How it must work:

Connect usb camera to computer's sotware (for taking pictures);
Connect power cable to scanner. Scanners camera coming back till home position.
Put object on the table.
Press "scan" button.
Table begins to rotate. Web camera begns to make pictures. After the process ended camera goes to the home position and ready to scan again.
And, yes, you dont need connection to arduino for scanning.

What you can (or need) to change in the code:
// ***** Count of photos in one table revolution *****
const