1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your LASER TREE Adjustable Focus TTL Laser Head. Designed for CNC mills, this blue laser module (450nm wavelength) is an effective tool for various laser engraving and cutting applications. Please read this manual thoroughly before use to ensure safe and efficient operation.
2. Safety Information
WARNING: This is a Class 4 laser product. Direct exposure to the laser beam can cause severe eye injury and skin burns. Always wear appropriate laser safety goggles when operating this device.
- Never look directly into the laser beam or its reflection.
- Ensure the work area is clear of flammable materials.
- Operate the laser in a well-ventilated area to dissipate fumes from cutting/engraving.
- Keep children and pets away from the operating laser.
- Disconnect power before performing any maintenance or adjustments.
- Do not modify the laser module in any way.
3. Product Overview
3.1 Features
- Adjustable Focus: Allows for precise focusing for both engraving and cutting tasks.
- High Reliability: Designed for a long lifespan, with a reported 10,000 hours of operation.
- High Engraving Precision: Achieves a compressed spot solution with a line width around 0.08mm for detailed work.
- Versatile Application: Suitable for engraving and cutting a wide range of materials.
- Compact Design: Small and compact for easy integration into CNC systems.
3.2 Models
The LASER TREE series includes several models with varying power outputs and characteristics:
- LT-20W-A: Optical Output Power 4W, Electric Power 20W.
- LT-30W-A-Blue: Optical Output Power 5W, Electric Power 30W.
- LT-40W-A-Gold: Optical Output Power 5W, Electric Power 40W.
4. Specifications
Below are the detailed specifications for the LASER TREE laser modules:
| Attribute | LT-20W-A | LT-30W-A-Blue | LT-40W-A-Gold |
|---|---|---|---|
| Optical Output Power | 4W | 5W | 5W |
| Electric Power | 20W (12V 1.6A) | 30W (12V 1.8A) | 40W (12V 1.8A) |
| Wavelength | 450nm | ||
| Laser Color | Blue | ||
| Material | Aluminum Alloy | ||
| Modulation | 0/5-12V, 0-5kHz TTL/PWM | ||
| Interface | XH2.54-3P socket | ||
| Features | Adjustable focus | ||
| Cable | 3pin 80cm | ||
| Application | Engraving/Cutting | ||
| Cutting Capability | 1-2mm Bass Plywood | 3mm Bass Plywood | 4-5mm Bass Plywood |
| Module Size (LWH) | 35*35*99.6mm | 40*40*120mm | 40*40*120mm |
| Module Weight | 146g | 225g | 225g |
| Heat Sink Size | 35*35*70mm | 40*40*70mm | 40*40*70mm |
| Fan Size | 35*35*20mm | 40*40*20mm | 40*40*20mm |
| Fan Speed | 9000rpm | ||
| Drive Protection | Surge protection, overvoltage protection | ||
| Operating Temperature | 0-70°C | ||
4.1 Dimensions
5. Setup and Installation
5.1 Mounting the Laser Module
The laser module is designed to be compact and easy to integrate into compatible CNC machines. Securely mount the laser head to your machine's gantry or designated laser mount point using appropriate fasteners (not included unless specified by your CNC machine's manual).
5.2 Wiring Connection
Connect the laser module to your CNC controller board using the provided 3-pin cable. Refer to the wiring diagrams below and your CNC machine's manual for correct connections.
Wiring Key:
- VCC: DC 12V (1.5A-2A) power input.
- GND: Ground connection.
- PWM: Pulse Width Modulation signal input (0/5-12V TTL/PWM, 0-5kHz). This controls the laser power.
5.3 Compatibility
These laser modules are compatible with various CNC machines. If you are unsure about compatibility, please refer to the table below or consult your machine's control board documentation.
6. Operating Instructions
6.1 Focus Adjustment
The laser module features an adjustable focus mechanism. Rotate the lens ring to achieve the desired focal length for your application.
Recommended Focal Lengths:
- Engraving: Approximately 20mm from the lens to the material surface.
- Cutting: Approximately 50mm from the lens to the material surface.
6.2 Supported Materials
The laser module is capable of engraving and cutting a variety of materials. Performance may vary based on material type, thickness, and laser power settings.
Engraving Materials:
- MDF
- Black acrylic
- Stainless steel (mirror finished)
- Plywood
- Leather
- Alumina
- Ceramics
- Bone
- Stone
- Bamboo
- Solid wood
- Rubber
Cutting Materials:
- Plywood (up to 5mm for LT-40W-A-Gold, 3mm for LT-30W-A-Blue, 1-2mm for LT-20W-A)
- Leather
- Bamboo
- Black acrylic
- MDF
- Pine board
6.3 Operation Examples
The following video demonstrates the engraving of mirror-finished stainless steel and the cutting of 5mm plywood with the LT-40W-A-Gold module.
7. Maintenance
- Lens Cleaning: Regularly inspect and gently clean the laser lens with a lint-free cloth and lens cleaning solution to ensure optimal performance and prevent beam distortion.
- Dust Removal: Keep the laser module and cooling fan free of dust and debris. Use compressed air to clear any blockages in the fan or heatsink fins.
- Storage: When not in use, store the laser module in a dry, dust-free environment, away from direct sunlight and extreme temperatures.
8. Troubleshooting
- Problem: Laser is not cutting or engraving effectively.
- Possible Solutions:
- Check Focus: Ensure the laser is properly focused for the material and task (20mm for engraving, 50mm for cutting).
- Verify Power Settings: Adjust laser power and speed settings in your CNC software. Different materials require different parameters.
- Material Compatibility: Confirm that the material is suitable for laser processing with this module.
- Lens Cleanliness: A dirty lens can significantly reduce laser power. Clean the lens as described in the Maintenance section.
- Problem: Laser module not responding to commands.
- Possible Solutions:
- Check Wiring: Ensure all connections (VCC, GND, PWM) are secure and correctly wired to your CNC controller.
- Power Supply: Verify that the 12V 1.5A-2A power supply is correctly connected and providing sufficient power.
- PWM Signal: Confirm that your CNC controller is sending a valid 0/5-12V TTL/PWM signal.
- Problem: Overheating of the laser module.
- Possible Solutions:
- Check Fan Operation: Ensure the cooling fan is spinning freely and not obstructed.
- Environmental Temperature: Operate the laser within the recommended temperature range (0-70°C).
- Dust Buildup: Clean the heatsink fins and fan to improve airflow.
9. User Tips
- Understanding Power: Note that the 'Electric Power' (e.g., 40W) refers to the electrical consumption of the module, while 'Optical Output Power' (e.g., 5W) is the actual laser beam power. The optical power is the critical factor for engraving and cutting performance.
- TTL/PWM Voltage: The module supports TTL/PWM modulation from 0/5V up to 12V. Ensure your CNC controller's output matches this range.
- Focal Length Precision: Precise focal length adjustment is crucial for both engraving detail and cutting depth. Use a gauge or test cuts to fine-tune the focus for each material and task.
- Compatibility Check: Before purchasing or installing, always verify the compatibility of the laser module with your specific CNC machine model, especially regarding the control board's wiring and voltage requirements.
10. Warranty and Support
Your LASER TREE laser module comes with a 1-year warranty from the date of purchase, covering manufacturing defects. Additionally, a 7-day return policy is available for any quality problems encountered immediately after receipt.
For technical assistance or warranty claims, please contact our customer support. All inquiries via email will be answered within 24 hours.
