CNC Shield V3 Expansion Board – GRBL Compatible for Arduino-Based CNC Machines
The CNC Shield V3 Expansion Board is a compact, powerful, and easy-to-use solution for controlling Arduino-based CNC machines. It is designed to work seamlessly with GRBL firmware, providing efficient control over stepper motors and enabling the automation of 3-axis or 4-axis CNC systems. Whether you’re building a DIY CNC router, laser engraver, 3D carving machine, or robotics project, this shield offers an easy and reliable way to manage your machine’s movements with precision.
Key Features & Benefits
✅ GRBL Compatible for Smooth CNC Control – Fully supports GRBL firmware, allowing efficient control of CNC machines using Arduino UNO.
✅ Supports 3-Axis & 4-Axis Motor Control – Can drive up to four stepper motors, making it suitable for CNC milling machines, laser engravers, and 3D carving systems.
✅ Compatible with A4988 & DRV8825 Stepper Drivers – Works with popular stepper motor drivers, providing flexible motor control with adjustable micro-stepping.
✅ Compact & Modular Design – Small form factor and stackable design ensure seamless integration with Arduino and easy expansion.
✅ PWM Spindle & Direction Control – Allows precise spindle speed control, enabling smooth operation of CNC cutting and engraving tools.
✅ Easy-to-Use Jumpers for Motor Configuration – Simple jumper-based settings allow easy customization of micro-stepping and axis configurations.
✅ Endstop & Limit Switch Support – Supports X, Y, and Z-axis limit switches for improved safety and precision.
✅ Additional I/O Pins for Advanced Features – Expand functionality with optional accessories like cooling fans, touch probes, and emergency stop switches.
Perfect for DIY CNC, Engraving & Robotics Projects
The CNC Shield V3 is ideal for:
✔️ DIY CNC Machines – Create CNC routers, laser engravers, and plasma cutters.
✔️ 3D Carving & Milling Machines – Perfect for woodworking, PCB milling, and acrylic cutting.
✔️ Robotics & Automation – Works with robotic arms, automation systems, and stepper motor-based projects.
✔️ Education & Prototyping – Great for students, makers, and engineers learning CNC and motion control systems.
Specifications
- Model: CNC Shield V3
- Compatible Firmware: GRBL (v0.8 and v0.9)
- Motor Control: 3-axis (X, Y, Z) or 4-axis (X, Y, Z, A)
- Driver Compatibility: A4988, DRV8825, and other Pololu-style stepper motor drivers
- Spindle Control: PWM spindle control with direction support
- Endstop Support: X, Y, Z-axis limit switch connections
- Expansion Ports: Additional I/O pins for accessories (fans, touch probes, emergency stop)
- Power Input: Requires external 12V–36V power for stepper motors (Arduino powered separately)
- Dimensions: Compact form factor for easy integration
Why Choose the CNC Shield V3 Expansion Board?
✅ Reliable GRBL-based CNC control for precision movement
✅ Modular & stackable design, perfect for Arduino projects
✅ Compatible with multiple stepper drivers for flexible motor control
✅ Easy wiring & configuration with labeled pin headers and jumpers
✅ Ideal for DIY CNC machines, laser engravers, and automation projects
Package Includes:
1 × CNC Shield V3 Expansion Board
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