Filament Guide
thingiverse
This Remix of (Creality Ender 3 / 3 Pro / Filament Guide by techboner) allows for mounting the end stop without a nut or screw, by using a twist lock. Insert in the extrusion channel 90 degrees then turn to lock into place.
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With this file you will be able to print Filament Guide 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.