three way connector for Ant Nest and Arenas

thingiverse

Connecting an ant nest to other structures, such as arenas and test tubes, requires a simple yet effective method. A fast way to establish this connection is available. It is designed for use with tubes that have an external diameter of 5mm. To ensure proper alignment, the internal connection is restricted in some way. If you need to connect tubes with different diameters, simply scale the design and print it out.