The NEMA 17 (17HS3401) Stepper Motor is the industry standard for precision motion control. At Electrapac, we recommend this high-torque, 34mm compact motor for anyone building a 3D printer, CNC router, or high-accuracy robotic arm where missing a step is not an option.

The 17HS3401 belongs to the high-performance 42BYGH series. It features a 1.8-degree step angle, meaning it takes 200 steps per revolution, providing exceptional resolution. Its compact length ($34\text{mm}$) makes it ideal for direct-drive extruders or small-scale CNC machines where weight and space are critical factors.

Key Features for Electrapac Customers

• Precision Engineering: The 1.8-degree step angle ensures smooth movement and high positioning accuracy, essential for fine 3D printing layers.

• Optimized Torque-to-Size: Despite being only 34mm long, it delivers a steady 0.25 N.m of holding torque, making it powerful enough for axis movement without being overly bulky.

• D-Shaft Design: The output shaft features a flattened "D" side, preventing pulleys and couplers from slipping during high-speed direction changes.

• 4-Wire Bipolar Configuration: Compatible with almost all stepper drivers, including the A4988, DRV8825, and TMC series.

• Detachable Cable Support: Most of our 17HS3401 units come with a 4-pin JST-PH connector or pre-soldered high-quality lead cables for secure electrical connection.

Wiring & Connection Guide

To get the most out of your motor from www.electrapac.com, pair it with a proper stepper driver. The standard 4-wire color coding is typically:

• Black / Green: Phase A

• Red / Blue: Phase B

Pro-Tip: Never connect or disconnect the motor while the driver is powered. This can create a back-EMF spike that will instantly destroy your stepper driver (like the A4988).

Primary Applications

• 3D Printers: Ideal for the X, Y, and Z axes of Creality, Prusa, and DIY builds.

• CNC Machines: Perfect for desktop laser engravers and light-duty PCB milling machines.

• Automated Liquid Dispensers: Used for precise volume control in medical or lab equipment.

• Camera Sliders: Smooth, jitter-free motion for professional time-lapse photography.

Why Shop at Electrapac?

We source the 17HS3401 with high-quality bearings to ensure quiet operation and a long lifespan. Visit www.electrapac.com to find this motor, A4988 drivers, and CNC shields for your Arduino Mega or Uno.