This is a remix/combo + cleanup of exellent MOD by SpartanDog3D and JASII adapter for CopperHead hotend.
It uses 4mm OD and 3MM ID PTFE tube to feed filament from MMU to the extruder and it solved most of my issues (still better tune the tips for all filaments/colors but if you have functionning cutter it will solve everything)!
Features (copy from iriginal design) :
Pass thru ptfe tube (3mm ID 4mm OD) Almost all the way to the gear.
Side window (for cleaning, watch and understand the filament feed)
It feeds almost all kind of tips.
What you need:
PTFE tube 3mm ID 4mm OD - https://tinyurl.com/yahfezny
4mm Pass thru coupler- pc4 m10 - https://tinyurl.com/4k9acn3m
Print in PETG ( ASA/ABS also fine).
0.2mm layers, no supports 3 perimeters minimum - 4 for extra strenght.
The author remixed this model.