PID ball balancing system

So this project comes across as quite the challenge. The topic of PID systems is extremly interesting, since it is frequently studied nowdays. I had to continue to work on it alone in quarantine and so far it has been going well but slow. After some troubles I ordered all the necessary parts and also printed all models. Once the parts arrive I will start assembling the whole thing. Here is a link to what the finalized project should look like: https://www.youtube.com/watch?v=57DbEEBF7sE