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 ...

To start with you will need two micro servo motors. The author found that “Tower Pro Micro Servo – SG90” motors were prefectly suitable. The two servos (Left and are Right) are driven by the D6 and D5 ...

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).