ORTUR Laser Module LU2-4-SF User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of the ORTUR Laser Module LU2-4-SF. This module is designed for use with desktop engraving machines such as Ortur Laser Master 2 Pro, OLM2 S2, and OLM2 Pro S2.

The LU2-4-SF module features an upgraded high-performance fixed-focus laser head with a 24V 2A power supply, offering high stability, efficiency, and excellent laser beam quality. It has a luminous power of 5500mW and a 30mm focal length, optimized for precise engraving and cutting.

Figure 1: ORTUR Laser Module LU2-4-SF. This image shows the red-colored laser module with its specifications label, indicating product name, model, wavelength, focal length, input voltage, and maximum luminous power.

For more detailed information, visit the official product page: ortur.tech/LU2-4

2. Key Features

Brilliant Performance: Upgraded high-performance fixed focus laser head, 24V 2A power supply featuring high stability, high efficiency, low noise, and excellent laser beam quality. 5500MW Luminous power, 30MM focal length is good for precise engraving and cutting.
High Speed & More Stable: Adopting compression laser technology, the laser focal spot is approximately 0.12*0.15 MM. This laser head is compatible with other 24V laser cutters, offering expanded creative possibilities.
Safety Protection Design: The laser module shield filters out 97% of UV rays, allowing engraving without protective glasses and preventing accidental contact with the laser spot. The aluminum housing and heat sink ensure rapid heat dissipation for long continuous operation.
Wide Compatibility: Ideal for engraving wood, bamboo, cardboard, leather, circuit boards, glass, aluminum oxide, and non-reflective lacquered metal. Cuttable materials include plywood board, pine board, non-woven fabric, and acrylic.

3. Setup and Installation

Before installation, ensure your engraving machine is powered off and disconnected from the power source. Refer to your engraving machine's specific manual for detailed instructions on module replacement or installation.

Unpacking: Carefully remove the LU2-4-SF laser module from its packaging. Inspect for any visible damage.
Mounting: Attach the laser module to the designated mounting bracket on your engraving machine. Ensure it is securely fastened to prevent movement during operation.
Electrical Connection: Connect the 24V power cable from your engraving machine to the laser module. Ensure the connection is firm and correct polarity is observed.
Data Connection: Connect any necessary data or control cables from the laser module to your engraving machine's control board.
Focus Adjustment: The LU2-4-SF features a fixed focus. Ensure the module is positioned at the correct working distance (focal length 30mm) from the material surface for optimal performance.

Figure 2: Key components of the ORTUR LU2-4-SF laser module. This image highlights the radiator for heat dissipation, the eye protection design of the shield, and the aluminum housing, all contributing to safe and efficient operation.

4. Operating Instructions

Always wear appropriate laser safety glasses when operating the laser module, even with the built-in shield. Ensure the work area is well-ventilated.

Software Setup: Use compatible laser engraving software (e.g., LightBurn, LaserGRBL) to prepare your design. Configure the software settings according to the material and desired effect.
Material Placement: Place the material to be engraved or cut on the machine's workbed, ensuring it is flat and secure.
Focal Length Verification: Verify the distance between the laser module and the material surface is approximately 30mm for optimal focus.
Power and Speed Settings: Adjust laser power and engraving/cutting speed in your software. Start with lower power settings and gradually increase as needed.
- For engraving, the LU2-4-SF is highly effective.
- For cutting, it supports higher speeds and is well-suited for materials like plywood, pine board, non-woven fabric, and acrylic.
Start Operation: Initiate the engraving or cutting process through your software. Monitor the operation closely.

ORTUR Laser Module Focal Spot Comparison

Figure 3: Comparison of the OLM2-SF's compressed laser focal spot (0.12x0.15mm) versus a typical laser, demonstrating its precision. The image also shows examples of engraving results on wood, highlighting the clean cuts and engravings achievable with the OLM2-SF.

Figure 4: A visual guide to widely applicable materials for the ORTUR LU2-4-SF laser module, including plywood, kraft paper, leather, plastic, film-coated glass, cardboard, non-woven fabric, solid wood, veneer, and bamboo.

5. Maintenance

Regular maintenance ensures optimal performance and extends the lifespan of your laser module.

Lens Cleaning: Periodically inspect the laser lens for dust or debris. Use a soft, lint-free cloth and a small amount of lens cleaning solution (specifically designed for optical lenses) to gently clean the lens. Avoid abrasive materials.
Heat Sink Inspection: Ensure the heat sink fins are free from dust and obstructions to allow for efficient heat dissipation. Use compressed air to clear any buildup.
Cable Connections: Check all electrical and data cable connections regularly to ensure they are secure and free from wear or damage.
Storage: When not in use, store the laser module in a clean, dry environment, away from direct sunlight and extreme temperatures.

6. Troubleshooting

Problem	Possible Cause	Solution
Laser not firing or weak output	Loose power connection Dirty laser lens Incorrect software settings (power too low) Module overheating	Check and secure power cables. Clean the laser lens. Increase laser power in software. Ensure proper ventilation and check heat sink.
Poor engraving/cutting quality	Incorrect focal distance Material not flat Speed too high or power too low Dirty lens	Adjust module height to achieve 30mm focal distance. Secure material flat on the workbed. Adjust speed and power settings. Clean the laser lens.
Module not recognized by software	Loose data connection Driver issues Incompatible software version	Check and secure data cables. Reinstall or update drivers for your engraving machine. Ensure software is compatible with your machine and module.

7. Specifications

ORTUR Laser Module Dimensions and Specifications

Figure 5: Detailed product dimensions and key specifications of the ORTUR LU2-4-SF laser module, including optical power, voltage, current, wavelength, focal spot size, and overall product size.

Specification	Value
Product Name	Laser Module
Model No.	LU2-4-SF
Optical Power	4,500-5,500mW (5.5W Luminous Power)
Wavelength	450±5nm (445±10NM)
Voltage	4.2-5.0V (Input of Laser Diode) / 24V (Input of Laser Module)
Electric Current	3.4-3.6A (Input of Laser Diode) / 2A (Input of Laser Module)
Focal Length	30mm
Focal Spot	About 0.12*0.15 MM
Light Path	Focused Beam
Product Size	4041122MM
Material	Aluminum
Color	Red
Item Weight	299 g

8. Warranty and Support

The ORTUR Laser Module LU2-4-SF comes with a 2-year warranty period. Customer service is available for the lifetime of the product.

If you have any questions regarding instructions, operation, or require further assistance, please contact the ORTUR customer service team directly. They are available to provide professional support.

For more information and support resources, you may visit the official Ortur store on Amazon: Ortur Amazon Store.

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Ortur LU2-4-SF