DSLR Camera Slider (Stepper Motor Driven)

This is a continuation of the pan tilt mount project I designed for my DSLR Canon EOS 250D. (If you haven’t seen that: https://www.thingiverse.com/thing:4316563) Here I have designed and added a slider to the pan tilt mount which allows for more complex camera movements. The Project video is on my YouTube channel: https://youtu.be/v1b7Wvu87-U

The slider is made from mostly 3d printed parts, M3 nuts and bolts and 2020 V-slot aluminium extrusion. It uses the same PCB I created for my pan tilt mount which is why I included an extra stepper driver and breakout for another Hall effect sensor. As the same PCB is used it has all the features of the pan tilt mount, such as Bluetooth communication to the Arduino Nano, the RGB status LED, auto homing and the ability to trigger the cameras shutter.
The code, schematics and parts lists are available on my GitHub repository: https://github.com/isaac879/Pan-Tilt-Mount

The 2GT timing belt, 20 tooth timing pulley and 16th microstepping allow t