(Compatible with BigTreeTech MMB-Board (Beta))
KMS-V1.0 is an automatic consumables changer based on the Klipper system, designed for multi-color 3D printing.
As a fully open-source device, it features the Happy Hare TYPE-B solution, which enables efficient and reliable consumable switching to provide seamless support for your multicolor printing.

• Aesthetic and practical: 3D printed shell and acrylic transparent window, both beautiful and practical.
• Efficient sealing: Optimized consumable sealing design can effectively prevent consumable moisture and contamination.
• Open source support: fully open source, community-driven, continuous improvement and innovation.
• Easy to integrate: Designed to be compatible with BigtreeTech MMB-Board (Beta), simplifying installation and configuration.
• Stable and reliable:The all-photoelectric trigger technology is used to achieve a high-stability multi-color printing system to ensure a smooth and error-free printing process.
• Modular design:It supports modular quick replacement of accessories, reduces maintenance costs, and improves equipment service life and user experience.
• Temperature and humidity sensing: Real-time monitoring of the temperature and humidity changes inside the enclosure using sensors integrated on the PCB.

If you appreciate and support our work, you are welcome to support us in the following ways:
• GitHub Star: Shine a Star on our open source projects and encourage us to keep going.
• Donation: Your support will help us continue to improve our equipment and drive more innovation.
• Community Contribution: Join our community and share your ideas and suggestions for improvement.

KMS is an automatic consumables replacement system based on independent channels, which natively supports the Happy-Hare V3 software system and can run stably.
The system integrates the temperature and humidity monitoring function, which monitors the temperature and humidity of the environment in the box in real time, and provides accurate data reference for your consumables storage.
Thanks to the independent channel design, KMS does not rely on selectors or servos, simplifying the control process while increasing reliability.
In order to optimize the synchronization of consumables between the KMS printing system and the printer, we have specially designed the KMS-Buffer system. This design ensures a smoother transfer of consumables between the printer end and the KMS.
In addition, we have developed a modular motorized rewinder to help you recycle consumables quickly and reliably, reducing the risk of print interruptions.
To get the most out of KMS, we recommend using BigTreeTech's dashboard system. Designed for Class B multicolor printing systems, this motherboard provides you with a complete product solution that ensures seamless integration and efficient operation.

Software System (Happy-Hare) KMS was developed in collaboration with the Happy-Hare V3 system to ensure seamless integration and efficient operation.
For a detailed guide to installation and configuration, please visit the Happy-Hare repository for comprehensive installation information.

• Hot End Tool Head Cutting: This is the most reliable and recommended solution for KMS. Please visit our database for the most up-to-date installation guides and instructions.
• Tip Forming: If you can't cut with a tool head, you can also opt for the tip forming option. However, the effectiveness of this solution may vary depending on equipment, consumables, and other factors.
In addition, in order to solve the problem of consumable embolization, we also specially designed the remote servo system cutter. This innovative design avoids clogging of consumables and ensures a smoother printing process.

During the development of the project, we have received the support of the following individuals and partners, and we would like to express our sincerest gratitude:

• BigTreeTech: Thank you for your core hardware solutions and customized technical support.
• Mr. Yanshimi: Thank you for your professional support in hardware development and system debugging, which overcame many technical bottlenecks.
• Ms. Muimoo: Thank you for your outstanding contributions to the software programming and testing process, which ensures the stability of the system.
• Mr. Moggieuk: Thank you for your support of the software architecture and your contribution to the development of the project, which laid a solid foundation for the project.

• Aliz
• Sunlu
• Creality
• Bambu Lab

Without the wisdom, sweat and trust of every partner, it would be difficult for this project to move from idea to reality.
We look forward to continuing to work together in the future to explore more possibilities together!