Summary

Remix from
https://www.printables.com/fr/model/298958-bambu-lab-x1-overengineered-y-splitter
Thanks for the design.

I just added 3D printables push fitings and clips to match the design and to fully 3D print the part and not have to buy the part from USA (not delivered in EU).

Print on a 0.4 nozzle @ 0.12 layer height.
3MF shared for bambu lab slicer.