Floating Filament Guide for Octave Spool
This is a filament guide that hangs on the same spindle that your spool is mounted to, only it is independent of the spool. This lets it float up and down, keeping the filament on your spool and not wrapped tightly around your spindle. It was designed specifically for Octave size spools. The guide itself clips in/out of the arms that loop around the spindle... this allows for quick change over between spools. Note, it works extremely well once about 5% of the filament has been used... but a brand new spool should be watched as filament can still slip off.