This shield is designed to allow you to control a CNC router or milling machine from an Arduino board. It contains 4 driver sockets which allows compatible A4988 driver modules to be inserted providing the ability to drive 3 stepper motor axis (XY& Z) plus an optional 4th auxiliary motor. Additional connectors provide easy connection of end stop sensors and control buttons.
Features
CNC Shield Board Features: GRBL 0.8c compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals). 4-Axis support (XYZA-Can duplicate XYZ or do a full 4th axis with custom firmware using pins D12 and D13). Open source firmware that runs on an UNO for Arduino that turns G-code commands into stepper signals Jumpers to set the Micro-Stepping for the stepper drivers. Endstop connections. 12-36V input current. X, Y, Z axis and extruder stepper motor control. A4988 Stepper Motor Driver Features: Automatic current decay mode detection / selection. Internal UVLO. Mixed with slow current decay modes. Synchronous rectification for low power dissipation. Crossover-current protection. Thermal shutdown circuitry. 3.3 and 5 V compatible logic supply. Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step. Output drive capacity of up to 35 V and ± 1.2 A Thermal shutdown circuitry. Ground Fault Circuit. Load short-circuit protection. Adjustable current control lets you set the maximum current output with a potentiometer.
Specification