The Creality Ender 3 Pro is a popular and affordable 3D printer, known for its versatility and ease of modification, well-regarded by hobbyists and professionals alike[1]. One of the most common and impactful upgrades is replacing the stock plastic extruder with an aluminum extruder[1]. This article delves into the benefits of using an aluminum extruder on the Ender 3 Pro, installation, alternative options, and maintenance to provide a comprehensive understanding of this upgrade[1].