expandable loose filament spool with holes for skate/bearing/roller holders
thingiverse
This is a remix of [https://www.thingiverse.com/thing:2413914] that uses holes in the middle of the spool to hold the start of the filament in place. Keep in mind, that this only works if you put the spool on a skate/bearing/roller filament holder that does not hold the spool through its middle, since there are the filament ends sticking out. For the loose end of the filament, I highly recommend these clips, since they keep the filament inside its filament "chamber": [https://www.thingiverse.com/thing:4702208]
With this file you will be able to print expandable loose filament spool with holes for skate/bearing/roller holders 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 expandable loose filament spool with holes for skate/bearing/roller holders.