NEJE 1500MW CNC Laser Engraver User Manual

1. Introduction

Thank you for choosing the NEJE DK-8-KZ 1500MW CNC Laser Engraver. This machine is designed for high-power and high-resolution engraving, capable of producing 3D and gradient effects on soft materials. Its unique frame, weak light automatic positioning, and frame positioning features simplify image alignment, making your engraving process easier and more precise.

Safety Information

WARNING:

• Always wear appropriate laser safety glasses when operating the engraver to protect your eyes from direct or reflected laser light.
• Ensure adequate ventilation in your workspace to dissipate fumes and smoke produced during engraving.
• Never leave the machine unattended during operation.
• Keep hands, hair, and loose clothing away from moving parts and the laser module during operation.
• Do not engrave unknown materials, as some may produce toxic fumes or catch fire.
• The laser module generates heat; avoid touching it during or immediately after operation.
• In case of emergency, immediately press the emergency stop switch located on the machine.

2. Product Overview Video

This video provides a visual demonstration of the NEJE 1500MW CNC Laser Engraver in action, showcasing its features and capabilities.

3. Package Contents

Upon unpacking, please verify that all the following items are included in your package:

Image: NEJE DK-8-KZ Laser Engraver and accessories.

• 1 x NEJE Laser Engraving Machine
• 1 x Protective Board (Baffle)
• 2 x USB Cables
• 1 x Allen Wrench
• 1 x Installation CD (Software and Drivers)
• 1 x Focusing Film
• 1 x Grease (Optional)
• 1 x User Manual

4. Specifications

5. Component Identification

Familiarize yourself with the key components of your NEJE laser engraver:

Image: Front view of the NEJE DK-8-KZ Laser Engraver.

Image: Emergency Stop Switch and Protection Panel.

• Emergency Stop Switch: (Red button) Immediately cuts power to the laser in case of an emergency.
• Protection Panel: (Green tinted) Shields the user from direct laser exposure.

Image: Magnetic Detachable Panel and Portable Focusing Head.

• Magnetic Detachable Panel: Allows easy access for maintenance or material placement.
• Portable Focusing Head: Used for adjusting the laser focus.

Image: Large-sized Worktable with dimensions (Width: 100mm, Length: 90mm).

• Worktable: Area where materials are placed for engraving.

Image: Rear Panel Connections.

• ON/OFF Button: Powers the machine on or off.
• Signal Light: Indicates machine status.
• Power 5V2A: Power input port.
• Data Port: USB connection for computer control.

Image: Multi-function Motherboard.

• Multi-function Motherboard: Controls the engraver's operations, including automatic identification for 2-pin/4-pin lasers and external input/output.

6. Setup Guide

6.1. Initial Inspection

1. Carefully remove all components from the packaging.
2. Inspect the machine and all accessories for any signs of damage.
3. Ensure all items listed in the "Package Contents" section are present.

6.2. Software and Driver Installation

The NEJE engraver uses professional English design software. You can install it from the included CD or download the latest version from the official NEJE website (a download link may be provided in the product description or on the CD).

1. Insert the Installation CD into your computer's CD-ROM drive.
2. Follow the on-screen instructions to install the software and necessary drivers.
3. If downloading, extract the software package and run the installer.
4. Ensure your operating system (Win 7, XP, Win 8, Win 10) is supported.

6.3. Connecting the Engraver

1. Place the engraver on a stable, level surface in a well-ventilated area.
2. Connect one end of a USB cable to the Data Port on the engraver and the other end to your computer.
3. Connect the power adapter to the Power 5V2A port on the engraver and plug it into a power outlet.
4. Press the ON/OFF button to power on the machine. The signal light should illuminate.

6.4. Focusing the Laser

Accurate focusing is crucial for optimal engraving results.

1. Place the material you wish to engrave on the worktable.
2. Use the focusing film (or a similar thin, opaque material) on top of your material.
3. Adjust the portable focusing head (laser module height) until the laser dot projected onto the focusing film is at its smallest and most intense point. This indicates the laser is properly focused on the material surface.

7. Operation

7.1. Software Interface Overview

The NEJE software provides a user-friendly interface for controlling your engraving tasks.

Image: NEJE Software Control Page.

• Image Processing: Tools to prepare your image for engraving.
• Insert Text: Add text directly to your design.
• Engraving Area Positioning: Use options like "To the origin," "To the center," or "Box locating" to precisely position your design on the material.
• Action Control: Fine-tune the laser head position (up, left, down, right).
• Start / Pause / Reset: Control the engraving process.
• Setting Burning Time: Adjust the duration of laser exposure for desired depth/darkness.

Image: NEJE Software Photo Gallery.

• Photo Gallery: Browse and select pre-loaded designs or your favorite works.
• My Collection: Save and manage your custom designs.

7.2. Starting an Engraving Task

1. Prepare your design: Open the NEJE software. Drag your desired image into the designated area on the control page.
2. Positioning: Use the engraving area positioning tools to align your design with the material on the worktable.
3. Adjust settings: Set the desired burning time and other parameters based on your material and desired effect.
4. Start engraving: Click the "Start" button to begin the engraving process.
5. Monitor: Observe the engraving process. Use the "Pause" button if adjustments are needed, and "Reset" to stop and restart.

7.3. Offline Operation

The NEJE engraver supports offline operation. Once your design is loaded and settings are configured via the software, you can disconnect the computer. The machine can operate by connecting the two USB ports to a charger or power bank (5V 1A).

7.4. Engraving Capabilities

The 1500MW blue and purple laser head offers higher speed and supports engraving on a variety of materials, including hard wood, plastic, bamboo, rubber, leather, and cut paper. It is generally not suitable for engraving on glass.

7.5. Cooling Control

Image: Cooling Control Diagram.

The NEJE engraver incorporates a professional power IC and radiator for effective cooling, ensuring stable and prolonged operation of the laser head.

8. Maintenance

WARNING: Always power off the machine and disconnect it from the power source before performing any maintenance.

8.1. Regular Cleaning

1. Exterior Cleaning: After each use, clean the surface of the engraving machine with a soft, dry cloth.
2. Laser Lens Cleaning: Gently clean the laser lens with a lens cleaning wipe or a soft, lint-free cloth moistened with isopropyl alcohol. Ensure no dust or debris obstructs the laser path.
3. Worktable Cleaning: Remove any debris, dust, or engraved material residue from the worktable.

8.2. Component Checks

8.3. Long-Term Storage

If storing the engraver for an extended period (e.g., 2 months or more):

1. Clean the machine thoroughly as described above.
2. Ensure the laser lens is clean and protected.
3. Store the machine in a dry, dust-free environment, away from direct sunlight.
4. If applicable, apply a small amount of the provided grease to moving parts to prevent corrosion.

9. Troubleshooting

This section addresses common issues you might encounter with your NEJE laser engraver.

9.1. Machine Not Powering On / Laser Not Firing

Q: Is the power cable properly connected?

A: Check the power connection to the machine and the wall outlet. Ensure the ON/OFF button is pressed.

Q: Is the USB cable connected?

A: For computer control, ensure the USB cable is securely connected to both the engraver and the computer.

Q: Is the emergency stop switch engaged?

A: Ensure the red emergency stop button is disengaged (usually by twisting or pulling it out).

Q: Is there a fault in the laser module?

A: If the machine powers on but the laser does not fire, contact NEJE support or your dealer for repair.

9.2. Engraving Issues (Weak, Inconsistent, or No Engraving)

Q: Is the laser properly focused?

A: Re-focus the laser using the focusing film to ensure the smallest, most intense dot on the material surface.

Q: Are the material and laser settings correct?

A: Adjust the burning time and laser power settings in the software according to the material type and desired engraving depth. Different materials require different settings.

Q: Is the laser lens clean?

A: A dirty lens can significantly reduce laser power. Clean the lens as described in the Maintenance section.

Q: Is the material suitable for engraving?

A: The engraver works on hard wood, plastic, bamboo, rubber, leather, and cut paper. It is not suitable for glass or reflective metals.

9.3. Connection Issues (Software Not Detecting Machine)

Q: Are the drivers installed correctly?

A: Reinstall the software and drivers from the provided CD or official website.

Q: Is the USB cable damaged or loose?

A: Try a different USB cable or port. Ensure the connection is secure.

Q: Is the machine powered on?

A: Ensure the engraver is powered on and the signal light is active.

Q: Is the ignition circuit damaged or poorly connected? (Adapted from PDF)

A: Check all wire harness connections for looseness or damage. Tighten any loose connections.

9.4. Machine Vibration / Abnormal Noise

Q: Are the machine's assembly bolts loose?

A: Carefully inspect and tighten any loose bolts on the machine frame.

Q: Is there debris on the moving rails?

A: Clean the rails and moving parts to ensure smooth operation.

Q: Has the machine suffered physical damage?

A: If the machine has been impacted, check all components for damage. Contact your dealer for inspection before further use.

10. User Tips

• The upgraded bracket is thicker (1MM), offering improved toughness and resistance to damage during transport or use.
• The new baffles and focusing plates are designed to prevent breakage and provide more accurate focusing compared to older models that used glasses.
• The laser head material has been upgraded and aged for 24 hours to enhance stability and extend its lifespan.
• The red button on top of the machine now functions as a simple ON/OFF switch.
• Remember to use the provided solid butter (grease) for periodic maintenance of moving parts to ensure smooth operation.
• The software supports multiple languages, including English, Simplified Chinese, Japanese, French, Italian, and German, for ease of use.
• For convenience, the machine can be used offline by connecting it to a 5V 1A charger or power bank after the design is loaded.

11. Warranty and Support

11.1. Warranty Information

NEJE guarantees that its laser engraver products will not malfunction due to defects in materials and workmanship within the specified warranty period.

• Warranty Period: Typically one year from the date of first sale for personal use, or six months for commercial use. Please refer to your purchase documentation for exact terms.
• Warranty Conditions: The warranty applies to products purchased from an authorized NEJE agent. The product must be registered (if required) and routine maintenance, as outlined in this manual, must be performed to keep the warranty valid.
• Company's Obligations: NEJE's obligation is limited to repairing damaged parts free of charge. The company reserves the right to determine the repair method.

11.2. Items Not Covered by Warranty

The warranty does not cover:

• Daily maintenance items, debugging, or normal wear and tear.
• Damage resulting from misuse, abnormal use, mishandling, accidents, or improper installation.
• Damage caused by improper maintenance or lack of maintenance.
• Use of accessories or parts not manufactured or sold by NEJE.
• Damage caused by altered or removed parts.
• Costs associated with dismantling or reassembly if not covered by warranty.
• Any accompanying or consequential damages (e.g., loss of time, income).

Rejections and Restrictions:

This warranty does not provide any implicit guarantee for the marketability of the product or its suitability for a specific purpose. The warranty applies solely to defects caused by materials or manufacturing processes.

11.3. Obtaining Warranty Service

To obtain warranty service, please contact the authorized NEJE dealer from whom you purchased the product. You may be required to provide proof of purchase and a detailed description of the issue. The user is responsible for any transportation costs associated with sending the product for repair.

11.4. Additional Resources

For further detailed instructions and documents, you may refer to the official user manual PDF: User Manual (PDF).