This GRBL1f-equipped engraving module lets you set tools and run engraving jobs offline, with flexible power control, integrated motor drive, and robust safety and cooling features for reliable performance in workshops and on the go. Key benefits Work without a constant PC connection: GRBL1f firmware supports offline tool setting and engraving so you can run jobs directly from the module or an offline controller. Precise power control for different materials: Signal-controlled power adjustment from 0 to 100 percent lets you fine-tune engraving intensity for wood, acrylic, leather, paper, and more. Safer, longer-lasting operation: Built-in over-current and short-circuit protection at 2A combined with an active heat dissipation system reduces risk of damage and improves uptime. Simplified connectivity and reliable motion: An integrated imported stepper motor drive and aluminium alloy heat-dissipating design make connections to offline modules and computers straightforward while improving motor performance and thermal management. What it solves Eliminates the need to keep a PC tethered to the engraver for routine jobs, speeding workflow and reducing cables on the workbench. Provides consistent, repeatable results across materials by giving precise 0–100% power control. Protects electronics and motors from common failure modes (over-current and short circuits) and controls temperature during extended use. Compatibility, materials and performance Firmware: GRBL1f for offline tool setup and standalone engraving. Power control: Signal-based 0–100% adjustment. Protection: Over-current and short-circuit protection at 2A. Drive and housing: Integrated imported stepper motor drive with aluminium alloy heat-dissipating construction. Connections: Designed for easy interfacing with offline modules and computers. Typical applications Hobby and craft engraving: Portable offline engraving of wood, leather, and acrylic for custom gifts and models. Small workshop production: Batch marking and detailing where PC access is limited or you need repeatable power settings across parts. On-site signage and prototypes: Run single or short-run jobs directly at a job site without bringing a laptop. This module is designed for reliable, safe, and flexible engraving workflows where offline operation, precise power control, and thermal management matter.