Product description
CNC Shield V4 is an expansion module designed for use with the Arduino Nano R3 or R4. It simplifies control of up to three stepper motors in CNC applications such as milling machines, engraving machines, laser systems, and 3D printing projects. The module is used together with stepper motor drivers such as A4988 or DRV8825 (not included). Each stepper motor requires only two digital I/O ports from the Arduino to control step and direction signals.
The module is compatible with the open-source software GRBL, which converts G-code into motor control commands via the Arduino’s USB connection. The PCB layout includes connectors for microstepping configuration via jumpers, limit switches (end stops), and spindle and coolant signals - allowing expansion for both standard axes and additional functions in more advanced CNC systems.
Specifications:
- Compatible with Arduino Nano R3/R4
- Number of driver slots: 3
- Recommended drivers: A4988 / DRV8825
- Control for up to three axes (X, Y, Z)
- Adjustable microstepping via jumpers
- End stop connections for each axis
- Spindle enable and direction connections
- External DC power supply: 5 VDC or 7.5 - 12 VDC
- For continuous operation, stepper drivers should be equipped with heat sinks
- Supplied without stepper drivers and Arduino Nano
Applications:
The module is suitable for building small to medium-sized CNC machines, engraving machines, DIY tools, and prototypes where precise stepper motor control and modular expandability are required. It provides a modular foundation for integrating Arduino-based control systems in projects that demand multi-axis control and standardized control interfaces.
