Spool roller for large spools (4 Kg)

This is a simple but well-working spool roller for large spools. It has been designed for a spool with an outer diameter of 35 cm (4 Kg Filament spool), so if yours is similar, this will work.

The spool roller frame includes spacing for the bearings so that the outer rings won't touch the walls and can rotate freely.

You need:
2x spool_roller
4x bearing_shaft

4x 608 bearing
12x M6 nut
2x M6 threaded rod, length 13 cm