Nema 17 Stepper Motor CNC Controller Kit With UNO R3 Board And DRV8825

Meet the NEMA 17 Stepper Motor CNC Controller Kit With UNO R3 Board And DRV8825 — a complete, ready-to-build solution for DIY CNC routers, laser cutters, and desktop milling machines. This versatile kit blends reliable NEMA 17 stepper motors with a familiar UNO R3 control platform, GRBL shield expansion, and robust DRV8825 drivers to give you precise, smooth motion across multiple axes. Perfect for hobbyists and professionals looking to streamline wiring, setup, and tuning in one package.

Benefits & Tips

• Three NEMA 17 stepper motors deliver steady torque for compact 2- or 3-axis CNC setups, making it ideal for hobbyist machines and small production tasks.
• UNO R3 Improvement Board and CNC GRBL Shield V3 provide a familiar, plug‑and‑play control interface with flexible firmware tweaks and straightforward motor tuning.
• Practical tip: start with conservative speeds and accelerations, verify each motor wiring, and calibrate the GRBL settings to prevent missed steps and improve precision.

Product specifications

• Brand Name: RATTMMOTOR
• Name: NEMA17 stepper motor
• Model Number: 17HS4401
• Type: HYBRID
• Step Angle: 1.8 degrees
• Size: 42x42x40 mm
• Phase: 2
• Current / Phase: 1.7 A
• Holding Torque: 78 oz-in / 45 Ncm
• Lead Wire: 4 wires
• Origin: Mainland China (Jiangsu)
• Certification: ISO, CE, RoHS, CCC, UL
• Is_customized: Yes

Package includes:

• 3 x Nema 17 stepper motors (40mm, 1.7A, 78 oz-in / 45 Ncm Holding torque)
• 3 x brackets
• 1 x UNO R3 Improvement Board with cable
• 1 x CNC GRBL Shield Board V3 Expansion Board
• 4 x DRV8825 Drivers
• 3 x Mechanical Switches

Warnings / Reminders

• Electrical work should be performed by users with appropriate training. Ensure correct wiring and power supply specifications to prevent damage.
• Follow all safety guidelines for electronics and CNC machinery when assembling and operating this kit.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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