CNC Shield Board + 4Pcs A4988 Stepper Motor Driver For Arduino 3D Printer

CNC Shield Board:Version: 3.0Color: RedSize (L*W*H): 68 x 53 x 18 mmVoltage: DC 12~36 V (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)Features:1. Uses removable A4988 or DRV8825 compatible stepper drivers.2. The extension board can be used for carving machine, 3 d printer driver expansion board3. GRBL 0.8 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals)4. PWM Spindle and direction pins,4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)5. Compact design. Stepper Motors can be connected with 4 pin molex connectors or soldered in place.6. Please note that this is an unassembled kit and Basic soldering skills are needed.A4988 Stepper Motor Driver:Color: RedSize (L*W*H): 20 x 15 x 10 mmThermal shutdown circuitry: YesCrossover-current protection: YesGround fault protection: YesLoad short-circuit protection: YesCompatible logic supply: 3.3V and 5 VFive selectable step modes: full, 1/2, 1/4, 1/8 and 1/16Features:1. Mix with slow current decay modes.2. Internal UVLO and Low RDS (On) Output.3. Automatic current decay mode detection/selection.4. Synchronous rectification for low power dissipation.5. Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.Package includes:1 x Engraver CNC Shield Board4 x A4988 Stepper Motor DriverNote: Manual measuring, please allow 1 ~ 3 cm error, thank you.