Ximimark 2Pcs V3 Engraver 3D Printer CNC Expansion Shield Board A4988 Driver Board for Arduino

The expansion board can be used as a drive expansion board for engraving machines 3D printers etc There is a total of 4 steps of the stepper motor drive module slot Note that this board does not include the A4988 stepper motor drive module which can be purchased separately in this shop It can drive 4 channels without entering the motor and each stepping motor only needs 2 IO ports That is to say 6 IO ports can manage 3 stepping motors very well It is very convenient to use and bid farewell to the tradition Stepper motor operation is cumbersome 09 compatible GRBL open source firmware that runs on an uno that turns the Gcode commands into stepper 37signalsPWM Spindle and direction pins 4Axis support X Y Z ACan duplicate X Y Z or do a full 4th axis with custom firmware using pins D12 and D132 x End stops for each axis 6 in total Coolant enableCompact design.