- CNC Shield BoardVersion: 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 DriverColor: 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.- Uno R3 BoardMCU: ATmega328Clock speed: 16 MHzUSB interface: ATmega16U2Operating voltage: 5 VI-I / O pin output current: 40 mA max3.3 V output current: 150 mA maxDigital I/O pins: 14 (including 6 with PWM capability)Analog input pins: 6EEPROM: 1 kBStatic RAM (SRAM): 2 kBFlash memory: 32 kBSize(L*W*H): 68 x 53 x 10 mmPackage included:5 x CNC Shield + UNO R3 Board + 4x A4988 Driver Kit
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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