Two m6 PTFE couplers that meet in the threads for a more direct connection.
Uses m5 bolts and V-slot nuts to attached to the printer.
Allows PTFE tubes to run from wherever your filament is stored to the top of the machine. You can then connect PTFE tubing from the hot end to the mount, allowing PTFE tubing from your filament storage all the way to the hot end.
The author remixed this model.