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Pricelist: Retail Price (B2C) Pricelist
CNC Shield V3.0 – GRBL Compatible Stepper Motor Driver Expansion Board for Arduino Uno (A4988/DRV8825)

CNC Shield V3.0 – GRBL Compatible Stepper Motor Driver Expansion Board for Arduino Uno (A4988/DRV8825)

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FeatureDetails
CompatibilityArduino Uno R3
Stepper SupportUp to 4 Axes (X, Y, Z, A)
FirmwareGRBL 0.8c / 0.9 / 1.1
Input Voltage12V to 36V DC
Driver SupportA4988, DRV8825, and similar
InterfaceRemovable Stepstick Sockets
Price
₹ 135.59 ₹ 135.59
(Tax included)

Product Description & Technical Details

Product Description The CNC Shield V3.0 is the industry-standard breakout board for building small-scale CNC routers, 3D printers, and laser engravers. Designed as a "shield" for the Arduino Uno, it simplifies the complex wiring required to control stepper motors. This board features four sockets for stepstick-style drivers (like the A4988), allowing you to control up to four axes. It also provides dedicated headers for limit switches, coolant control, and spindle/laser enable signals. It is highly valued at Robogears for its modularity—if a motor driver fails, you can simply swap it out without replacing the entire board.

Key Highlights

  • GRBL Ready: Designed to work seamlessly with GRBL, the open-source high-performance G-code control software that runs on an Arduino Uno.

  • 4-Axis Support: While X, Y, and Z are standard, the "A" axis can be used for a 4th axis or "cloned" to mirror another axis (useful for dual-motor Y-axis setups).

  • High Voltage Handling: The board can handle motor power inputs from 12V up to 36V, providing the torque needed for various mechanical builds.

  • Micro-stepping Control: Includes jumper pins under each driver socket, allowing you to set the micro-stepping resolution (up to 1/32 for DRV8825).

  • Emergency Stop & Limit Pins: Features dedicated pins for E-Stop, Abort, Hold, and Resume, along with end-stop pins for each axis to prevent mechanical crashes.

Technical Specifications

  • Logic Voltage: 5V (from Arduino)

  • Motor Voltage: 12V-36V (Requires external power supply)

  • Connector Type: 4-pin Molex/JST for motors

  • Dimensions: 68mm x 53mm

  • Weight: ~32 Grams

Installation Tip from Robogears When installing motor drivers (A4988 or DRV8825), pay close attention to orientation. Installing them backward will immediately destroy both the driver and the shield. For A4988 drivers, the potentiometer usually faces the "bottom" of the shield (away from the power terminals). Always ensure you connect a high-current DC power supply (minimum 12V 5A) to the blue screw terminals for the motors; the Arduino’s USB power is not sufficient to move the motors.

Note: This product is the CNC Shield V3.0 ONLY. Arduino Uno, motor drivers, and jumpers are sold separately. Product images are for illustration purposes only.