Features: CNC board: 1. PWM spindle and direction pin. 2. 2 * The end baffles of each axis , a total of 6. 3. Activation of the coolant. Compact design. 4. Use a removable A4988 or DRV8825 compatible stepper drive. 5. Please note that this is an unassembled kit that requires basic soldering techniques. 6. The stepper motor can be connected or soldered with a 4 pin Molex connector. 7. Connect to 12 36 V DC. Currently only the DRV8825 driver can handle voltages up to 36 V.Therefore , consider the operating voltage when you supply the board with power. Stepper motor driver DRV8825: 1. Applicable to 2.5 A stepper motor drives under 8.2 V ~ 45 V. 2. Six different step resolutions: Full , Half , 1 ,4 , 1 ,8 , 1 ,16 , 1 ,32. 3. Simple steps and direction control interface. 4. The adjustable potentiometer sets the maximum output current to increase the step frequency. 5. Automatic detection ,selection of the power drop mode. 6. Thermal shutdown circuit , undervoltage shutdown , overcurrent protection. 7. Earth short circuit protection and load short circuit protection. Technical data: Model: CNC Shield Expansion Board + stepper motor driver drv8825 + heat sink Suitable: for V3 Engrave Type: 3D printer accessories Package list: 1 * CNC shielding plate 4 * DRV8825 stepper motor driver 4 * mini cooler
