CNC Shield Expansion Plate + 4pcs A4988 Heat Sinks Stepper Motor Controller for 3D Printer Engraver

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  • COMPACT DESIGN Compact design, stepper motor can connect 4 pin connectors or be welded
  • GRBL 0.8 Compatible GRBL 0.8 compatible Open source firmware operated on ONE, which converts the G-code command into a step signal
  • 4 SHAFT BRACKET - PWM shaft and steering, 4-axis support (X, Y, Z, A - you can copy X, Y, Z or use D12 and D13 pins to customize firmware and complete axis 4)

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