The Free Universal Construction Kit
The Free Universal Construction Kit is an open-source project that provides adapter pieces for connecting popular construction toys like LEGO, Duplo, and Tinkertoys. By 3D-printing these free adapters, users can combine different toy systems that were previously incompatible, encouraging creative play and interoperability. The project embodies the principles of open design and hacktivism, making proprietary systems work together through freely shared digital blueprints.