![]() function: to control the direction of the stepper motor, the number of steps. #define Z_STP 4 // z -axis stepper control #define Y_STP 3 // y -axis stepper control ![]() #define X_STP 2 // x -axis stepper control #define Z_DIR 7 // z axis stepper motor direction control #define Y_DIR 6 // y -axis stepper motor direction control #define X_DIR 5 // X -axis stepper motor direction control #define EN 8 // stepper motor enable, active low The following is a simple stepper motor control procedures: (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)ĬNC Shield V3 Engraving Machine A4988 Driver Board x 1 pcs Stepper Motors can be connected with 4 pin molex connectors.(Some drivers like the DRV8825 can do up to 1/32 micro-stepping) ![]() Jumpers to set the Micro-Stepping for the stepper drivers.Uses removable Pololu A4988 compatible stepper drivers.2 x End stops for each axis (6 in total).4-Axis support (X, Y, Z, A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13).(Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals ) ![]()
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