Filament guide - PC fan screws
thingiverse
I've modified this to be mounted with PC coarse fan screws (bc I have a lot of them around) both internal guide and external guide are on 1 file now, print as a set.
Download Model from thingiverse
With this file you will be able to print Filament guide - PC fan screws with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Filament guide - PC fan screws.