I've redone my filament guide to only require a single PC4-M10 coupler. While also making insertion of filament more convenient.
For the utmost convenience when inserting filament, use a countersink drill bit on the end of your PTFE-tube.
If this helps you out, please like, rate and/or share a picture of the result! Otherwise, please leave a comment with feedback 😉
Credits
This version is based on the 2020 V-slot filament guide "Reverse Bowden". An optional part for the BearExxa that has been designed by Grégoire Saunier.
The author hasn't provided the model origin yet.