DESCRIPTION:
This expansion board as a driver expansion board, can be used for engraving machines, 3D printers. It is a total of four slots, can drive four A4988 stepper motor driver, 4-axis Arduino CNC Shield v3. Each road stepper motors only need two IO ports. In other words, six IO ports can be well managed three stepper motors. Very convenient to use.
SPECIFICATION:
● GRBL 0.9 compatible. (Open source firmware that runs on an Arduino uno that turns G-code commands into stepper signals)
● Uses removable A4988 compatible stepper drivers.
● PWM Spindle and direction pins
● 4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins A4 and A3)
● 2 x End stops for each axis (6 in total) + one Probe
● Coolant enable output.
