CNC V3 Shield with 4 A4988 Drivers

CNC V3 Shield with 4× A4988 Stepper Motor Drivers

Efficient GRBL-Based CNC Motion Control

The CNC V3 Shield + 4 A4988 Stepper Drivers bundle is an essential kit for building your own CNC, 3D printer, or laser engraver using an Arduino UNO. Designed for GRBL firmware, this shield simplifies stepper motor control with compatibility for up to 4 axes (X, Y, Z, and an extra A-axis or clone).

Whether you’re automating motion or building a DIY CNC machine, this combo ensures precise control, easy wiring, and expandable functionality.

✅ Key Features

🛠 CNC V3 Shield:

• Compatible with Arduino UNO (ATmega328P)

• Supports GRBL firmware

• Controls up to 4 stepper motors (X, Y, Z, A)

• Stepper motor driver sockets for A4988 or DRV8825

• Endstop connectors (X-, X+, Y-, Y+, Z-, Z+)

• Spindle enable and coolant control pins

• Easy-to-use screw terminals for stepper motor and power connections

⚙ A4988 Stepper Motor Driver:

• Microstepping resolution: Full to 1/16 step

• Adjustable current control via potentiometer

• Thermal shutdown, overcurrent protection, and crossover-current protection

• Operates from 8V to 35V and up to 2A per coil with proper cooling

📦 Package Includes:

• 1 × CNC Shield V3 Board

• 4 × A4988 Stepper Motor Driver Modules

• 4 × Heatsinks for Drivers

📐 Applications:

• CNC milling machine

• Laser engraver

• 3D printer (like Prusa, DIY types)

• Drawing or plotting machines

• Robotics with precise axis control

💡 Tip: Pair it with an Arduino UNO + GRBL firmware for best performance. Always set current limits before running stepper motors to avoid overheating.