608 bearing pulley

thingiverse

Pulleys use a single 608 ball bearing. You can utilize them with ropes ranging from 1 to 6 mm. Designing an universal filament spool holder with two 8 mm horizontal pins or shafts, combined with four pulleys per spool of filament, seems like a practical approach when working with multiple filament spools in a row.\n Caution: When printing with this design, you must temporarily halt the process and manually remove the bearing to prevent any issues.