Very nice project. As described in the video, for servo motor v dumb stepper, servo motor is more efficient and servo motor won’t miss steps, or at least not without being able to provide a warning.

For instance, the Serial Servo Raspberry Pi HAT offers multiple powering options, four Serial Servo connectors, four programmable buttons, an on/off switch, and a 1.14” TFT Display for status ...

Of course the Arduino and motordriver dont find place in the standard housing they are glued in a box on the side of the servo. B.T.W you just dont tell it to go to zero after a 10 hour print :-).

My CNC is built from 2 DC servo motors for X, Y axis and 1 stepper motor for Z axis.” Watch this video on YouTube . “Motor voltage: 24 VDC, 38 VDC (E-type).

This could be an interesting one if you work with robotics, flagged by the Arduino team - a look at how to smooth the operation of a servo, to avoid jerking between positions. It's from the YouTuber ...