Filament Spool

Spool for loose filament.

Link to Fusion 360 design (easily changeable parameters to make it in different sizes): http://a360.co/2BDdCvq

I use this to print loose filament (like samples and left overs), the open sides makes it easy to bundle the loose filament with zip ties (if carefully keeping track of the ends it won't tangle) and remove it from the spool.

The spool in the images is printed with PETG and weights 190 grams. I like it sturdy but it can be made with less thickness to save plastic (just change the parameters in Fusion 360). The STL files for download has a spool diameter of 90 mm, inner width of 50 mm and the rim diameter of 200 mm. There are holes for fixing the filament that are 2.1 mm in diameter.

It should be usable for filament refills like this https://www.dasfilament.de/filament-refill/pla-1-75-mm , but I have not tried it. Will update next time I buy filament.