Kossel Top Spool Holder Using 608 Bearing

thingiverse

To prevent the filament from tangling underneath the spool, guide the filament like I do or use other existing filament guides on this site. The 'center' part has a rod that's weak and may break easily, so use the included *insert.stl* and plug it into the hole to strengthen it. Remember to print it lay flat on your bed. Alternatively, use a long M4 screw like I do; other strong rods with a diameter less than 4mm can also be used. To implement this, you'll need to print: 3 *beam.stl* 1 *SpoolFixer.stl* 1 *Certer.stl* 1 *Rotor.stl* You'll also need some M3 screws and nuts, at least one 608 bearing (two are preferred), known as skateboard bearings or fidget spinner bearings. If you want to mount it into the 2020 aluminum profile, check out my M3 T-nut: https://www.thingiverse.com/thing:2469130 The extended version of the center is for extra-wide spools; if your spool is wider than 7cm, use this one instead.