LDO Motors 42STH60-2004AC NEMA 17 Stepper Motor - SuperMac

High-torque stepper motors like this one are essential for CoreXY and high-speed 3D printer builds where precise motion control prevents layer shifting and print defects. Without a reliable motor, users risk missed steps and inconsistent extrusion that degrade print quality.

The LDO Motors 42STH60-2004AC NEMA 17 Stepper Motor - SuperMac delivers 9Kg-cm holding torque with a 1.8° step angle, making it ideal for demanding printers such as Voron 2.4, Trident, and Switchwire. This motor features a 60mm body and a 25mm output shaft, with a 1 meter jacketed cable terminated by a 4-pin Molex connector for secure wiring. LDO Motors are the standard choice in the Voron community for their durability and precision in CoreXY and Klipper-based systems.

Why Upgrade?

• Prevents layer shifting and missed steps in CoreXY printers like Voron 2.4 and Trident.
• Provides higher holding torque for stable motion in high-speed and heavy-duty prints.
• Reliable 4-pin Molex connector reduces wiring failures common in DIY builds.
• Longer 60mm body and 25mm shaft accommodate custom mounts and upgrades.
• Compatible with Klipper firmware setups requiring precise motor control.

Best For:

• Voron 2.4 and Trident builders upgrading to high-torque stepper motors.
• Switchwire users needing reliable NEMA 17 motors for CoreXY motion.
• Klipper ecosystem enthusiasts seeking consistent stepper performance.
• DIY CoreXY and high-speed 3D printer projects requiring robust motion components.
• Users replacing stock motors on printers demanding higher torque and precision.

Pair With the Right Filament

Reliable stepper motors like this one ensure consistent extrusion, which is critical when printing with flexible or abrasive filaments.

• TPU Flexible Filament — smooth motor control prevents filament jams during flexible material printing.
• PLA Filament — precise stepping improves layer accuracy for standard prints.
• PETG Filament — stable motion supports consistent extrusion with tougher filaments.