3D Printer 42-40 Stepper Motor, 2 Phase 1A 1.8 Degree 0.4N.M Stepper Motor for 3D Printer Extruder, Compatible with CR-10 and Ender-3 Series E Axis

Upgraded 42-40 stepper motor for Ender and CR-10 E-axis in printers
✔️ 1.8°, 0.4 N·m torque, 1 A/phase, 5 mm shaft, 42×42×40 mm

These 42-40 motors power the E-axis and extrusion on Ender 3, Ender 3 Pro, CR-10 and related CR-10 series printers. This listing is for a single motor; cables and mounting screws are not included.

✅ 42x42x40 mm body (1.7x1.7x1.6 in), weight 290 g, metal frame
✅ 1.8° step angle, 0.4 N·m holding torque, 1 A per phase
✅ 5 mm shaft diameter with D-shaped shaft for secure coupling
✅ Compatible with Ender 3/3 Pro, Ender 5, CR-10 series E-axis
✅ Note: 1x motor; cable and screws not included

💡 What is a stepper motor used for in 3D printers?

In 3D printers, stepper motors provide precise, repeatable motion control for the extruder and all axes. Handy for accurate filament feeding and reliable print head movement.

- precise extrusion and axis control for reliable prints - works with common driver boards and firmware for microstepping - 1.8° 2-phase motors fit Ender and CR-10 E-axis setups