Filament guide throught the cabinet wall

thingiverse

This design is tailored for my printer's cabinet. Drill a hole and install this guide to securely insert filament into the cabinet with ease. The recommended wall thickness ranges from 1-15 mm, but creating a longer screw is relatively straightforward. The design can be scaled down by 50% without compromising its functionality. It will still work flawlessly even at a reduced size. You have two mounting options: use two "nuts" and a pipe-screw to secure it, or employ one nut and anchor the guide to the wall with some 3mm metal-screws before inserting the pipe-screw.