1. Introduction
The NEJE Master 2S Max is a professional high-power laser engraving and cutting machine designed for a wide range of materials. Featuring a GD32 MCU, wireless control, and a large working area, it offers precision and versatility for various creative and industrial applications. This manual provides essential information for safe operation, setup, and maintenance of your device.

2. Safety Guidelines
WARNING: Laser radiation can cause eye and skin damage. Always follow safety precautions.
- Always wear laser goggles during usage to protect your eyes. Never look directly at the laser beam.
- Avoid direct contact of the laser with your skin.
- Do not engrave reflective materials, as the laser beam can reflect and cause damage.
- Be aware of fire hazards. The laser can ignite flammable materials. Always supervise the machine during operation.
- Keep pets and children away from the working area.
- Ensure adequate ventilation. Smoke and fumes will be generated during engraving and cutting; operate in a well-ventilated area or use a smoke exhaust system.
- Do not attempt to dismantle the laser module without permission from customer service, as this may cause irreparable damage and void the warranty.

3. Package Contents
Verify that all items listed below are included in your package:
- Laser engraving machine (frame)
- Laser module (e.g., 4060 module)
- 12V3A power supply
- European standard adapter (or appropriate regional adapter)
- User Manual
- Red laser protective glasses
- Data cable
- Wooden board (sample)
- Paper (5 sheets)
- Pen
- Brush
- Focusing film
- Angle iron (4 pieces)
- Alumina film
- Cable tie (3 pieces)
- Nut (5 pieces)
- Large hexagon wrench
- Small hexagon wrench
- Open wrench
4. Specifications
| Feature | Specification |
|---|---|
| Model | Master 2 Max 30W/40W/80W |
| Engraving Area | 460 x 810 mm |
| Laser Type | Diode |
| Optical Output Power | 7.5W (30W module), 10W (40W module), 15W (80W module) |
| Laser Wavelength | 450nm |
| Focal Point | 0.1mm |
| Image Size / Pixel | 2266 x 2266 px / 0.075mm point distance |
| Engraving Speed | 0-120 (unit not specified, typically mm/s or similar) |
| Cooling Mode | Air Cooling |
| Control Board | 2 x MCU + Wireless control + MEMS |
| Safety Protection | MEMS Roll protection |
| Supported Systems | Windows 7/10, Android, iOS, macOS |
| Supported Graphic Formats | DXF, BMP, JPG, PNG, NC, etc. |
| Input Voltage | AC100-240V, 50/60Hz |
| Output Voltage | DC12V, 3A (for 30W/40W modules) / 12V 3A/4A (general) |
| Frame Material | CNC Cutting Composite plate, aluminum alloy, acrylic |
| Weight | 5.0 KG |
| Warranty of Core Components | 3 years (Laser Module) |
5. Setup Guide
The NEJE Master 2S Max typically comes partially assembled. Follow these general steps for initial setup:
- Unpack Components: Carefully remove all parts from the packaging and verify against the package contents list.
- Assemble Frame (if necessary): If the frame is not fully assembled, follow the included assembly instructions using the provided tools. Ensure all screws are tightened securely.
- Install Laser Module: Mount the laser module onto the gantry. The design features a sliding slot for easy installation and adjustment.
- Connect Power: Connect the 12V power supply to the machine and plug it into a suitable power outlet (AC100-240V, 50/60Hz).
- Connect to Computer/Device: Connect the machine to your computer via the USB interface, or prepare for wireless control via the NEJE APP.
- Install Software: Download and install the appropriate software (NEJE Android APP, NEJE Wireless APP for iOS/macOS, LightBurn, LaserGRBL, or Benbox) on your control device.

6. Operation
6.1 Control Methods
The NEJE Master 2S Max offers flexible control options:
- **Wireless Control:** Use the NEJE Android APP or NEJE Wireless APP for iOS/macOS for convenient operation.
- **Offline Button:** For basic operations without a connected device.
- **USB Interface:** Connect directly to a computer running compatible software like LaserGRBL, LightBurn, or Benbox.

6.2 Focusing the Laser
Accurate focusing is crucial for optimal engraving and cutting results. The machine features a 2-in-1 adjustable and fixed lens system.
- Adjustable Lens: For fine-tuning, rotate the focus cap on the laser module. A smaller focus results in better engraving effect and higher accuracy.
- Fixed Lens (Fixed Focal Length): For consistent results, especially when switching between engraving and cutting, use a fixed thickness board to set the focal length. The best focal length is approximately 40mm from the light exit.
For Engraving: The laser can engrave wood up to 3mm deep. Maintain a focus range of 30-50mm.
For Cutting: The laser can cut wood up to 8mm deep. When cutting, it is critical to use the 'CNC model' setting in your software.


6.3 Supported Materials
The NEJE Master 2S Max can engrave and cut a variety of materials:
- Engravable: MDF, Balsa wood, Paper, Wood, Fabric, Plastic, Leather, Plywood, Foam Paper, Anodized Aluminum, Alumina oxide, Mahogany, Bamboo, Paper cards, Ivory.
- Not Engravable: Metal (non-anodized), Glass, Stone, Ceramics, PCB, Stainless Steel, Reflective Material, Transparent Material.

7. Maintenance
- Lens Cleaning: The laser module features a modified laser air assist system to prevent smoke damage to the lens. Regularly inspect and gently clean the lens if necessary to maintain optimal performance.
- Module Replacement: The NEJE Master 2S Max supports various replaceable laser modules (3500mW, 7W, 20W, 30W, 40W). Ensure the machine is powered off before replacing any module.
- Cooling System: The intelligent drive dynamically controls the fan speed based on the laser temperature. Ensure the fan is free from dust and obstructions for efficient cooling.



8. Troubleshooting
If you encounter issues with your NEJE Master 2S Max, consider the following:
- Poor Engraving/Cutting Quality: Check the laser focus. Ensure the material is flat and properly secured. Verify software settings (power, speed, passes) are appropriate for the material.
- Machine Not Responding: Check power connections and USB cable. Ensure the software is correctly connected to the machine. Restart the machine and software.
- Software Issues: Ensure your software is up-to-date. If using LightBurn, ensure it is a licensed version.
- Laser Module Not Firing: Verify all connections to the laser module. Ensure safety features (like MEMS roll protection) are not triggered.
- Excessive Smoke: Ensure proper ventilation. Adjust power settings to prevent excessive burning.
For persistent issues, please contact customer service with a detailed description of the problem and any relevant videos. Many operational problems can be resolved with remote assistance.
9. User Tips
- Always perform small test engravings on new materials to find optimal power and speed settings before starting a large project.
- Keep your workspace clean and free of debris to prevent interference with the laser path or moving parts.
- Regularly check for firmware updates for your machine and software to ensure the best performance and access to new features.
- Utilize the NEJE Cloud Gallery for design inspiration and shared settings.
10. Warranty and Support
The NEJE Master 2S Max has passed the quality control of the NEJE factory. The product comes with a 2-year warranty for quality problems. The laser module itself has a warranty period of one year. This warranty covers manufacturing defects and malfunctions under normal use.
Please note that the laser head is a consumable product. The warranty covers inhuman damage for the laser head for three months. Any unauthorized dismantling of the laser module will void its warranty.
For support, technical assistance, or warranty claims, please contact the seller or NEJE customer service directly. Provide your product model, purchase date, and a detailed description of the issue for efficient service.





