Very nicely-done, and very smooth operation, too.
Wayne
I've built a 3-track traverser table that is driven by a custom Arduino program that drives a linear actuator and is controlled via a Nextion touchscreen panel.
Link to a video demonstrating it in action:
https://youtu.be/93N6ssS9sNw
Link to a video describing the construction:
https://youtu.be/DTriD3GlASQ