CNCjs

CNCjs is a comprehensive web-based interface for controlling CNC milling machines and other computer numerical control devices. Built with Node.js, it provides real-time control and monitoring capabilities for popular CNC firmwares including Grbl, Smoothieware, and TinyG.

Key Features

• Universal CNC Control:

  • Support for Grbl, Smoothieware, and TinyG firmwares
  • Real-time machine control and monitoring
  • G-code execution and management
  • Position tracking and coordinate systems
  • Feed rate and spindle speed control
  • Emergency stop and safety features

• Modern Web Interface:

  • Responsive web-based user interface
  • Real-time status updates via WebSocket
  • 3D visualization of toolpaths and workpieces
  • Mobile device compatibility
  • Multi-device access and control
  • Customizable workspace layout

• Advanced G-Code Management:

  • G-code file upload and management
  • Real-time code visualization
  • Toolpath preview and simulation
  • Job progress monitoring
  • Pause, resume, and stop functionality
  • Code editing and modification

• Real-Time Monitoring:

  • Live machine status display
  • Current position and coordinate tracking
  • Tool and spindle status monitoring
  • Work coordinate system management
  • Real-time feed rate and speed display
  • Error detection and reporting

• Technical Excellence:

  • Node.js-based server architecture
  • Serial communication with CNC controllers
  • WebSocket for real-time updates
  • Extensible plugin system
  • RESTful API for integration
  • Cross-platform compatibility

• Professional Features:

  • Macro and custom command support
  • Job queue management
  • Tool change procedures
  • Workpiece setup assistance
  • Machine calibration tools
  • Data logging and reporting

• Self-Hosting Benefits:

  • Complete control over CNC operations
  • Local network access for security
  • Custom configuration and macros
  • Integration with existing workflows
  • No dependency on external services
  • Enhanced manufacturing control

Technical Specifications

• Language: Node.js
• License: MIT
• Deployment: npm, Docker, standalone
• Platforms: Cross-platform (Windows, macOS, Linux)
• Requirements: Node.js, serial port access
• Database: SQLite (for settings and logs)
• Architecture: Node.js web server with serial communication

Use Cases

• CNC Milling: Precision milling operations and part production
• Prototyping: Rapid prototyping and small-batch manufacturing
• Educational: CNC training and educational environments
• Hobby Manufacturing: Personal CNC projects and crafting
• Small Business: Professional CNC services and production
• Remote Control: Network-based CNC machine operation

Unique Advantages

• Multi-Firmware Support: Works with Grbl, Smoothieware, and TinyG
• Web-Based Interface: Modern, responsive web UI for any device
• Real-Time Control: Live machine monitoring and control
• Cross-Platform: Runs on Windows, macOS, and Linux
• Extensible: Plugin system for custom functionality
• Open Source: MIT licensed, transparent and customizable

Based on the CNCjs GitHub repository, this tool provides users with a modern, web-based CNC control solution that excels in firmware compatibility and real-time operation, making it ideal for manufacturers, makers, and CNC operators who need reliable, feature-rich machine control software.