Motorization of remote controlled photo sliders

The video describes How to Motorize a Photo Slider with Remote Speed and Direction Control.
Here are the links where I bought it;
https://www.ebay.de/itm/Short-Body-Nema-17-Stepper-Motor-Schrittmotor-1-8deg-13Ncm-1A-42x20mm-4-wire/392162434600?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

https://www.ebay.de/itm/Für-3D-Drucker-PartsRepRap-8xGT2-Pulley-16Teeth-Bohrung-8mm-5m-GT2-Zahnriemen/123579656297?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

https://www.ebay.de/itm/12Stk-Linearlager-Linearführung-LM8UU-LM10UU-LM12UU-LM16UU/173876773832?ssPageName=STRK%3AMEBIDX%3AIT&var=472598233747&_trksid=p2057872.m2749.l2649

https://www.ebay.de/itm/Stepper-Motor-Driver-Controller-Board-Speed-Adjustable-with-Remote-Control/261682745676?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Видео Motorization of remote controlled photo sliders канала Mravic's Garage