Stepper Motor StepperOnline
StepperOnline 23HS45-4204S NEMA 23 High Torque
$22
Overview
The go-to NEMA 23 stepper motor for hobby CNC. 3.0 Nm of holding torque in a standard NEMA 23 frame. This is the single most recommended stepper in the PrintNC community and many other mid-size CNC builds. Available in cost-effective 3-packs on Amazon. Best paired with DM542T or DM556 driver.
Best for
The community default for mid-size hobby CNC machines like PrintNC, Shapeoko, and similar builds
Pros
- 3.0 Nm holding torque — plenty for most hobby builds
- Most popular NEMA 23 in the CNC community
- Available in 3-packs for savings
- Well-documented with extensive driver pairing guides
Cons
- Full-length body (113mm) needs adequate space
- 4.2A per phase requires capable driver (DM542T minimum)
- Open-loop — no stall detection
- Loses torque quickly above 1200 RPM