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CNC Shield V3 A4988 Controller for RAMPS 1.4 Reprap 3D Printer - Red
The expansion board can be used for engraving machine£¬ 3D printer driver extension plate£¬ a total of four stepper motor driver module slot. (Moto Sako does not contain the A4988 stepper motor driver module£¬ need to be in the store to purchase another) It can be driven by 4 road into the motor£¬ and each step electric machine only need two IO mouth. That is to say£¬ six IO mouth can be a very good management£¬ the three step stepper motor use very convenient.