I already know and love this video. It blew my mind because I could have never imagened somthing even close to the marblemachine before watching this video.
But the marblemachine he used in this video was only a prototype.
He is currenty working on a new and improved version of it (the marblemachine X) and he is documenting his progress with a weekly video.
There are already 96 episodes and they are all realy interesting to watch (imo) even for someone that has no clue about engineering like me