This is a connector for Kullerbue / Kullerbü marble run games. The model is based on the original geometry of Haba Kullerbü and so all commercial rights of the original shape and function belongs to Haba.

I designed this connector with a small assembly step. This means flat printed springs that will stand high loads without breaking in between layers.

Simply press the springs in the small holes of the body. The little noses of the springs has to point towards another.

I recomend printing with tree supports.