Filament Retainer
thingiverse
This text describes a handy device that organizes your excess 3mm filament rolls. It's specifically designed for 1kg rolls and works by clipping onto the roll's edge, securing the active filament end in place.
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With this file you will be able to print Filament Retainer 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 Retainer.