The stepper motor serves as a core driving component in 3D printers, enabling high-precision positioning through accurate pulse signal control of rotational angles. Its open-loop control system maintains stable operation without requiring encoder feedback. When combined with microstepping technology, it significantly reduces vibration and noise while improving surface quality of printed objects. The high-torque characteristic ensures reliable driving force for both extrusion mechanisms and motion platforms, with position-locking capability even during power outages. Featuring specially designed low-heat generation structures and durable bearings, it supports prolonged continuous operation. This critical component meets precision requirements for various printer sizes, ensuring dimensional accuracy and interlayer consistency of printed models.