Introducing our innovative multifilament upgrade solution for FDM printers - a unique, mechanical system designed to enhance multi-filament printing without the need for electronic parts or additional engines. This product represents a significant advancement, setting it apart from other offerings in the market. Currently in its test and development phase, it is tailored for skilled hobbyists and not intended for immediate plug-and-play use. While tested on several 3D printer models, compatibility with every version on the market is not guaranteed. Our aim is to share this groundbreaking solution with the 3D printing community. However, due to limited resources, we are unable to develop it for every potential use case. Therefore, we invite enthusiastic developers to join our community, contribute to its evolution, and help make this product a success for all enthusiasts.