Filament Clip
cults3d
I found the hole in the original too small for 1.75mm filament, but I liked the idea. So I made this setup in onShape that allows for more space for the filament and made the filament clip in so you don't have to feed an end through a hole.
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With this file you will be able to print Filament Clip 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 Clip.