Braided Galton Board - Probabilities with String

thingiverse

This is an intuitive demonstration of the Central Limit theorem in action. The Galton board, a classic visual aid for illustrating this concept with falling balls, has been cleverly replaced by string, each path represented by one thread, allowing us to instantly identify probable locations at a glance. The dowels used are 12.5mm in diameter and were simply hammered into the lasercut wood I used. If your lasercutter's tolerances differ from mine, it would be wise to glue them for added security. For this project, I employed 1mm builders cord, but any suitable string will do just fine. However, I found threading a bit of a challenge without making mistakes along the way. My solution was to hold the previous thread in my left hand and the next one in my right. By gently jiggling my left hand, I could feel the old thread bounce, which served as a helpful reminder of where I was in the sequence, allowing me to place the new thread accurately in its spot.