Key benefits Comprehensive on-board control: 21 dedicated function keys give immediate access to essential machining controls (including emergency stop, cycle start, and spindle off), reducing response time and helping prevent costly mistakes. Plug-and-play compatibility: Designed specifically for CNC engraving systems, the controller requires no additional software or drivers. Connect via USB and begin work immediately. Flexible placement: USB connection supports cable lengths up to 3 meters, allowing convenient positioning of the controller relative to your computer or control station. Durable, workshop-ready construction: Water-docked outer casing protects internal components from water and oil exposure, extending service life and maintaining reliable performance in demanding industrial environments. User-friendly operation: Intuitive layout and straightforward setup minimize training time and technical interruptions for both beginners and experienced operators. Features and specifications Function keys: 21 physical keys including emergency stop, cycle start, and spindle off for direct machine control. Compatibility: Specially tailored for CNC engraving machines; no extra drivers or software required. Connectivity: USB interface; cable lengths supported up to 3 meters. Protection: Water-docked outer casing designed to resist water and oil exposure. Design focus: Simple, ready-to-use operation—plug in via USB and use without installation. How this controller solves common problems Reduces downtime: Physical function keys let operators act instantly without navigating menus or software, speeding corrections and cycle changes. Simplifies setup: Eliminates driver installation and configuration steps so machines can be up and running quickly. Protects your investment: Water- and oil-resistant casing lowers the risk of damage from common shop contaminants, reducing repair and replacement costs. Improves ergonomics and flexibility: Longer USB cable support and compact controller design let you place controls where they are most accessible to the operator. Practical use scenarios Small job shop engraving: An operator rapidly switches jobs and makes frequent spindle and cycle adjustments; the 21 function keys and plug-and-play USB connectivity speed job changes and reduce interruptions. Prototype and PCB fabrication: Quick, reliable access to emergency stop and cycle start is critical during iterative testing; the controller’s immediate controls and durable casing reduce risk during repeated setups. Production signage or decorative panels: In environments where coolant, oil, or dust is present, the water-docked casing preserves controller reliability while operators manage long runs using direct function-key control. What to expect in daily use Fast setup: Connect the controller via USB and begin operating—no drivers or extra software needed. Stable operation: Physical, clearly labeled function keys provide consistent, repeatable control actions. Durable performance: The rugged outer casing resists shop contaminants and helps maintain long-term reliability. This controller provides a focused, reliable interface for CNC engraving machines: 21 function keys for direct control, USB plug-and-play connectivity with up to 3 m cable support, and a water-docked casing for protection in workshop environments.