Upgrade StepperOnline
NEMA23 Stepper Motor Upgrade Kit (3-Axis, 3Nm)
$95
Overview
A 3-axis NEMA23 stepper motor upgrade kit with 3Nm (425 oz-in) holding torque motors, ideal for upgrading from the weaker NEMA17 motors found on many budget CNC routers. Higher torque means faster feed rates, less stalling, and the ability to take deeper cuts. Compatible with most GRBL and Mach3 controller boards that support NEMA23.
Best for
Budget CNC router owners with NEMA17 motors who are losing steps or want faster feed rates
Pros
- 3Nm torque is a massive upgrade from typical 0.4-0.9Nm NEMA17 motors
- Eliminates missed steps during aggressive cuts
- Allows faster rapid movements and higher feed rates
- StepperOnline is a well-known brand with consistent quality
- Standard NEMA23 mounting pattern fits most upgrade brackets
Cons
- Requires a stepper driver that can handle higher current (3-4A per motor)
- NEMA23 motors are larger and heavier which may need mounting adapters
- Higher current draw means a beefier power supply is needed (48V recommended)
- May require rewiring and new connectors
- Heavier motors on the gantry can reduce acceleration on lightweight frames