This is a remix of Mini Splitter v2 for MMU2+1s mod adapted to use PC4-01 fitting between the splitter and the extruder.
The idea of this mod is to releive the tension in X carriage caused by 10 PTFE tubes connected directly to the extruder.
You will have to print both parts.
You will need a PTFE tube to join both parts. Recommeded length 70mm. Recommended 2,5/4 PTFE (inner/outter diameter) making a chamfer in both ends.
You can get MMU board firmware here:
https://github.com/gonchogsm/MMU2-1S_Firmware/releases/tag/PC4-01_v1.0
The rest it's the same as in the original version https://www.prusaprinters.org/prints/71799-mini-splitter-v2-for-mmu21s-mod. Needed set screw M3x3mm or larger to fix the PTFE to the splitter (one per PTFE, max. 10)
The author remixed this model.
Use PC4-01 fitting between the splitter and the extruder