Ender 3 Rolling Spool Bearing U-shaped Bracket.

thingiverse

This is a custom spool holder that attaches to the Ender 3 printer's standard cylindrical spool holder, utilizing two Patio Door bearings as rollers. The bearings are inserted into adapters which plug directly into each end of the Ender 3 spool cylinder, with a 1/4 inch center hole. A 1/4 inch wooden dowel serves as the central shaft that the Patio Door bearings roll on, supported by the U-shaped bracket at either end. This setup enables smooth rotation of the filament spool. The Patio Door bearings can be sourced from local Home Depot, Lowes or Hardware stores. For added stability, the U-Shaped bracket is secured to the Ender 3 Spool Holder Bracket using Zip Ties. These custom parts were designed and created using EMachineShop's Freeware Version software.