Completely encapsulated Bowden splitter so you don't have to keep disassembling the bowden tube. Print it in Bambu Gray to make it look like part of the machine. The default recommendation was ABS/PETG, but i've printed with PLA and looks fine so far.
Assembly instructions from https://www.printables.com/model/584189-clean-bowden-y-splitter
Print with ABS or PETG. Use auto rotation, no support. Don't use too much force when screwing in the PC4-M6's.
You must use “UNLOAD” when removing the external filament, not manual retract. This will give the filament a clean cut and it will not stuck in the splitter.
Remark: You can switch inputs if the filament doesn't travel smoothly enough.