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Detailed Product Description:

Transform your Arduino Uno into a powerful, multi-axis motion controller with the CNC Shield V3, a versatile and essential expansion board for any hobbyist, maker, or engineer. This high-performance shield is the ideal platform for building your own 3D printer, CNC router, laser engraver, or pick-and-place machine. Designed for seamless compatibility with Arduino, the shield leverages the power of open-source GRBL firmware to interpret G-code commands and control up to four stepper motors with exceptional precision.

The key to its flexibility lies in its support for removable stepper motor drivers, particularly the widely popular A4988 and DRV8825. The A4988 driver is an excellent, cost-effective choice for many applications, offering up to 1/16 microstepping for smooth and accurate movements. For projects demanding higher torque and greater resolution, the DRV8825 driver is the superior option, providing up to 1/32 microstepping and a higher voltage tolerance up to 45V DC. This modular design allows you to easily mix and match drivers based on your specific motor requirements.

Beyond just motor control, the CNC Shield V3 includes critical features for building a robust and safe machine. It provides dedicated headers for connecting limit switches for each axis, enabling homing functionality and preventing over-travel. PWM pins are also available for controlling spindle speed or laser power, giving you complete command over your tool. Running on a DC input voltage typically between 12V and 36V, this compact Arduino expansion board is an all-in-one solution that simplifies wiring and accelerates your project development, making it the perfect choice for anyone diving into the world of DIY CNC.

The Arduino CNC Shield V3 is an essential motor control expansion board designed to interface with the Arduino Uno for controlling CNC machines, 3D printers, laser cutters, and robotic arms.

Using GRBL (open-source CNC firmware), this shield allows precise control of stepper motors through A4988 or DRV8825 driver modules. It supports up to 4 stepper motors (X, Y, Z, A) with microstepping capabilities. The compact and modular design makes it easy to build custom CNC setups for DIY makers, engineers, and developers.

It also includes endstop connectors, a spindle enable pin, and a cooling fan output, making it a complete motion control platform for hobbyist and semi-professional CNC machines.

Key Features:

• Compatible with Arduino UNO and GRBL firmware

• Supports A4988 or DRV8825 stepper motor drivers

• Controls 3-axis CNC machines (X, Y, Z)

• Easy plug-and-play with screw terminal access

• Expandable for 4th axis (A-axis)

Technical Specifications:

How to Use with Arduino UNO:

1. Install GRBL Firmware on your Arduino UNO using Arduino IDE.

2. Plug the CNC Shield V3 onto the Arduino Uno board.

3. Insert stepper motor driver modules (A4988 or DRV8825) into the shield.

4. Connect stepper motors, limit switches, and power supply.

5. Use GRBL-compatible software like Universal Gcode Sender (UGS) to send G-code.

Wiring Diagram:

• X, Y, Z motor pins are clearly marked.

• Limit switch headers available for each axis.

• A-axis mirrors X-axis by default (can be reconfigured).

Applications:

• DIY CNC routers and engraving machines

• 3D printers and laser engravers

• Robotic arm control

• Precision motor control experiments

• Prototyping automation systems

Package Includes:

• 1 × Arduino CNC Shield V3