CNC shield V3 for Engraving Machine 3D Printer A4988 DRV8825 driver expansion board
- Latest Arduino CNC Shield Version 3.10 designed for use with the Arduino Uno to control stepper motors.
- Fully compatible with GRBL 0.9+ firmware, translating G-code into motor signals for CNC applications.
- Supports 4-Axis control (X, Y, Z, and a duplicate or full 4th A-axis) for complex motion systems.
- Features removable sockets for standard A4988, DRV8825, or compatible stepper drivers.
- Includes jumpers to easily configure Micro-Stepping (up to 1/32 for DRV8825) for precision control.
- Provides connection points for Coolant Enable and two End Stops per axis (6 total).
Product Details
CNC Shield V3.10 for Arduino Uno - GRBL Compatible Stepper Driver Expansion Board
The CNC Shield Version 3.10 is the standard driver expansion board for transforming an Arduino Uno into a powerful and cost-effective controller for CNC Routers, Laser Engraving Machines, and 3D Printers. It acts as a bridge, accepting the low-current control signals from the microcontroller running GRBL firmware (G-code interpreter) and translating them into the necessary high-current signals required to drive up to four stepper motors.
This shield features four dedicated sockets for plug-and-play installation of popular stepper motor driver modules like the A4988 or DRV8825. Critical to precise operation, the board includes jumpers that allow users to easily configure the micro-stepping resolution, enabling smoother motion and higher precision (e.g., up to 1/32 step with the DRV8825). Connectivity is comprehensive, supporting up to four axes (X, Y, Z, and A), and providing dedicated headers for two limit switches/end stops per axis (allowing for both min and max stops), along with a header for Coolant Enable control. Its compact design ensures a clean and robust integration on top of the Arduino Uno R3.
🔧 Key Features
- Model: Expansion Shield (CNC Shield V3.10).
- Microcontroller Compatibility: Arduino Uno R3.
- Firmware Compatibility: GRBL 0.9 and above.
- Axis Support: 4-Axis (X, Y, Z, A).
- Driver Support: Sockets for 4 Stepper Drivers (A4988, DRV8825, etc.).
- Micro-Stepping: Configurable via jumpers (Supports up to 1/32 micro-stepping).
- Safety Features: Connectors for 6 End Stops (2 per axis).
- I/O: Coolant Enable pin.
💡 Functionality
- Converts G-code commands from the Arduino into discrete pulses for stepper motors.
- Allows for precise control of motor speed, direction, and step resolution.
⚙ Technical Specifications Summary
| Model | CNC Shield V3.10 |
| Axes Supported | 4 |
| End Stop Headers | 6 (2 per axis) |
| Driver Supply Voltage | Typically 12V-36V DC (Driver Dependant) |
| Logic Voltage | 5V DC (from Arduino) |
| Driver Compatibility | A4988, DRV8825, TMC2100, etc. |
📦 Package Includes
- 1 × CNC Shield V3.10 for Engraving Machine/3D Printer
- Note: Stepper Drivers (A4988/DRV8825) and Arduino Uno are typically sold separately.
Specifications
- ModelCNC Shield V3.10
- Product TypeStepper-driver expansion shield
- Host BoardArduino Uno R3 or compatible ATmega328P board
- Firmware CompatibilityGRBL 0.9 and later; pin mapping must match firmware
- Driver Sockets4 sockets for X, Y, Z and A channels
- Stock GRBL Axis UseX/Y/Z control with A commonly configured as an axis clone
- Driver CompatibilityA4988, DRV8825 and compatible Pololu-format drivers
- MicrosteppingJumper-configurable; up to 1/16 with A4988 or 1/32 with DRV8825
- End-Stop Headers6 positions; two each for X, Y and Z
- Logic Voltage5 V from Arduino Uno
- Motor SupplyTypically 12–36 V DC; limited by installed driver and cooling
- Auxiliary I/OSpindle / coolant and control headers as populated
- Drivers IncludedNo; stepper-driver modules are sold separately
- Package Includes1 × CNC Shield V3.10
- Typical ApplicationsCNC routers, laser engravers, plotters and motion-control projects
