Unlock precise multi-axis control with this 3-axis CNC controller board, built on the reliable GRBL firmware and ATmega328P microcontroller. This compact control board delivers stable, accurate motion for demanding DIY and professional projects, supporting standard stepper drivers and offering a direct path for machine automation. Features and Benefits
- GRBL 1.1 Firmware on ATmega328P - Provides robust, open-source G-code parsing for smooth and reliable control of 3-axis machines.
- Compact Expansion Card Design - Easily integrates into existing setups or new builds, saving space and simplifying wiring.
- Support for External Stepper Drivers - Enables use with a wide range of common drivers like A4988 and DRV8825 for flexible motor control.
- Dedicated Spindle and Coolant Control Outputs - Allows for automated control of laser power or spindle speed directly from your G-code.
- Standardized Connector Layout - Features common 4-pin interfaces for endstops and axes, ensuring straightforward and reliable connections. Applications
- DIY CNC Router Construction - Serves as the core control brain for building a custom woodworking or engraving machine from the ground up.
- 3D Printer Controller Upgrade - Replace or augment an existing control system to gain direct G-code control and expand functionality.
- Laser Engraver and Cutter Integration - Perfect for converting a plotter or building a laser system, with dedicated PWM control for laser power modulation.
- Educational and Prototyping Projects - An excellent, budget-friendly choice for learning CNC principles, robotics, and automation in workshop or academic settings.
Operating Voltage: 12-24 V DC. Logic Voltage: 5 V DC. Assembly Type: DIY Kit. Axis Count: 3. Communication Interface: USB. Compatible Machines: 3D Printer, Laser Engraver, Laser Cutter, Marking Machine. Controller Type: GRBL. Coolant/Control Outputs: 1. Endstop Inputs: 3. Firmware: GRBL. Form Factor: Expansion Card. Microcontroller: ATmega328P. Spindle/Laser Control: PWM. Stepper Driver Interface: Step/Direction. Input Voltage: 12-24V DC (typical for GRBL shields). Logic Voltage: 5V DC (regulated on-board). Processor Clock Speed: 16 MHz (ATmega328P standard). Communication Interface: USB via serial (UART). Step Signal Interface: 4x TTL-level step/direction outputs. Supported G-code Standards: RS-274/NGC (GRBL subset). Board Form Factor: Arduino Uno Shield / Expansion Card. Compatible Base Board: Arduino Mega 2560 or Uno (inferred from "mega328"). Control Axes: 3 (X, Y, Z). Cooling: Passive (no active cooling components). EEPROM: 1 KB (for GRBL settings storage). Emergency Stop Input: Configurable via limit switch pins. Firmware: GRBL v1.1 (or compatible). Homing Cycle: Supported (requires limit switches). I/O Pin Headers: Standard 0.1" pitch male headers. Limit Switch Inputs: 3x (X, Y, Z) + 1x Probe input. Maximum Step Pulse Frequency: 40 kHz (GRBL standard). Microcontroller: ATmega328P. PWM Frequency: 1-1000 Hz (configurable via GRBL). Spindle/Laser Control: 1x PWM output (0-5V). Stepper Motor Drivers: External driver interface (requires separate drivers). Work Coordinate Systems: G54-G59 (GRBL standard). Q: What are the key specifications and dimensions of this GRBL control board? A: This is a 3-axis CNC controller board based on the ATmega328P microcontroller running the open-source GRBL firmware. While exact dimensions are not specified, it is a standard expansion card designed to fit common DIY CNC, 3D printer, and laser engraver enclosures. It features connections for stepper motor drivers, limit switches, and spindle/laser control.. Q: Is this GRBL control board durable enough for regular use in a DIY workshop? A: Yes, this board is built with reliable components for consistent performance in DIY and light professional applications. The PCB uses quality solder mask and through-hole components designed to withstand the electrical noise and vibrations common in CNC and engraving machines. It offers excellent value for its robust construction.. Q: Can this 3-axis control board be used with my existing 3D printer or laser engraver? A: This board is highly compatible with many DIY CNC routers, 3D printers, and laser engravers/cutters that utilize standard NEMA stepper motors and a 12-24V power supply. It runs the popular GRBL firmware, which is widely supported by software like Candle, LaserGRBL, and Universal Gcode Sender. Check your machine's voltage and connection requirements before purchase.. Q: Does this CNC controller come with any warranty or guarantee? A: Product warranties can vary by seller. We recommend checking the specific product listing or contacting the seller directly for detailed information on any warranty coverage, return policy, or technical support offered with this GRBL control board. Most reputable sellers provide some form of buyer protection.. Q: Is this GRBL control board a good value compared to more expensive branded controllers? A: Yes, this offers excellent value for DIY enthusiasts and professionals seeking quality without premium brand pricing. It delivers reliable performance for regular use. You get the full functionality of the open-source GRBL firmware on a well-made board, making it a cost-effective core component for building or upgrading a 3-axis machine..