CNC Shield - Expansion board with stepping motor A4988 (Green color) with heat sink

• Use a staggering removable A4988 or DRV8825 driver.
• The extension board can be used for the engraving machine 3d printer or the driver.
• Compatible with GRBL 0.8, the open source software works with Arduino UNO by turning the command code g in signal.
• (x, y, z, a – can copy the x, y, z or use the pin D12 and D13 customize firmware to full – 4).
• The compact design, the stepper motor can connect connectors or soldering.

CNC Shield V3 Expansion Board + 4pcs A4988 Stepper Motor Driver Module for 3D Printer CNC Expansion Card: 1>PWM steering shaft and connectors . 2> 2 stops for each axle (6 in total). 3> Allows coolant. 4>Uses A4988 or DRV8825 removable step drivers. 6> Stepper motors can be connected with the 4 pin molex connectors or welded them in place. 7> Runs on 12 - 36volts of direct current. (At this time only DRV8825 drivers work up to 36V, so consider the operating voltage when powering the card.) 8> Please note that this is an unassembled kit and that basic welding skills are needed. A4988 Stepper Motor Controller: 1> Low RDS Output (On). 2> Automatic current decay mode detection/selection. 3> Mixed with slow current decay modes. 4>Synchronized rectification for low power dissipation. 5> Internal UVLO. 6>Surge protection. 7> 3.3 and 5V compatible logical interface. 8> Thermal shut-off circuit. 9> Protection for grounding failure. 10>Short circuit protection. 11>Five step modes to select: complete, 1/2, 1/4, 1/8 and 1/16. 12>Warning:Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. Package includes: 1CNC expansion plate 4 Stepper Motor Drivers A4988 4 x Heat Sinks