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    CNC Shield UNO-R3 Board 4xA4988 Driver Kit With Heat Sink ForEngraver 3D Printer

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    CNC Shield Board:

    Version: 3.0

    Color: Red

    Size(L*W*H): 68 x 53 x 18 mm

    Voltage: 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 board

    3. GRBL 0.8 compatible. (Open source firmware that runs on an -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: Red

    Size(L*W*H): 20 x 15 x 10 mm

    Thermal shutdown circuitry: Yes

    Crossover-current protection: Yes

    Ground fault protection: Yes

    Load short-circuit protection: Yes

    Compatible logic supply: 3.3V and 5 V

    Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16

    Features:

    1. Mix with slow current decay modes.

    2. Internal UVLO and Low RD5 (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.

    Uno R3 Board:

    MCU: ATmega328

    Clock speed: 16 MHz

    USB interface: ATmega16U2

    Operating voltage: 5 V

    I-I / O pin output current: 40 mA max

    3.3 V output current: 150 mA max

    Digital I/O pins: 14 (including 6 with PWM capability)

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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    Return Policies

    • Return for refund within: 30 days
    • Return for replacement within: 30 days
    • This item is covered by Defendwe Return Policy

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