Shield CNC Shield V3 4 Axis Engraving Machine 3D Printer Arduino

CNC Shield V3 Engraving Machine 3D Printer A4988 Expansion Board Introduction The expansion board can be used as engraving machines, 3D printers driven expansion board, a total of 4 slots channel stepper motor driver module ( note that this board does not include A4988 stepper motor driver module, you can purchase another in the shop ) can drive 4 -way not stepping motor, stepper motor and each way takes only 2 Ge IO ports, ie . 6 Ge IO ports can be well managed 3 stepper motors, very convenient to use, farewell conventional stepping motor cumbersome operation. Two UNO module IO port correspondence between presentation.