1. Introduction
The TWOTREES TTS-55 PRO is a versatile and portable diode laser engraving and cutting machine designed for DIY enthusiasts and professionals. It features advanced laser technology for high-precision engraving and efficient cutting on a variety of materials, including wood, stainless steel, ceramic, and dark stone. This manual provides essential information for safe operation, setup, maintenance, and troubleshooting to help you get the most out of your device.
2. Safety Information
Operating a laser engraver involves potential hazards. Please read and understand all safety warnings before use.
- Eye Protection: Always wear appropriate laser safety goggles (Class IV laser) to protect your eyes from direct or reflected laser radiation.
- Skin Exposure: Avoid direct skin exposure to the laser beam.
- Ventilation: Operate the machine in a well-ventilated area to disperse fumes and smoke produced during engraving and cutting.
- Material Safety: Ensure the materials you are processing are safe for laser engraving/cutting and do not produce toxic fumes or flammable byproducts.
- Children and Pets: Keep the device out of reach of children and pets.
- Emergency Stop: Familiarize yourself with the location and operation of the power switch for emergency shutdowns.
- Flammable Materials: Do not operate near flammable liquids or gases.

3. Package Contents
The TWOTREES TTS-55 PRO laser engraver is designed with modularity, allowing for independent replacement or exchange of components. The package typically includes the following main components:
- Laser Engraver Frame (disassembled components: X-axis, Y-axis, base)
- Laser Module (5.5W Diode Laser)
- Control Box (with 32-bit Motherboard)
- Power Adapter (12V 4A DC)
- USB Cable
- Laser Safety Goggles
- Assembly Tools and Fasteners
- Sample Materials (e.g., wood, metal plate)
- User Manual (this document)

4. Specifications
| Feature | Specification |
|---|---|
| Model | TTS-55 PRO |
| Laser Type | Diode |
| Input Power | 40W |
| Laser Output Power | 5.5W (FAC) High Speed |
| Laser Wavelength | 445±5nm |
| Engraving Speed | Up to 10000mm/min |
| Spot Size | 0.08*0.08mm |
| Focal Distance | 23mm |
| Laser Class | Class IV |
| Laser Life | > 10000h |
| Engraving Area | 300x300mm (extensible to 420*400mm/600*600mm with optional kit) |
| Motherboard | LTS ESP32 Motherboard (32-bit dual-core MCU) |
| Electrical Requirement | 12V 4A DC |
| Operation Method | USB, PC Connection, APP WiFi Operation |
| Cooling Mode | Air Cooling |
| Control Type | Push button, iOS, Android, All-in-one |
| Connectivity | USB, Wi-Fi |
| Software Support | Mac, Windows, GRBL, LIGHTBURN, MKSLaser App |
| Dimension (L*W*H) | 570*510*150mm |
| Weight | 3 kg |


5. Setup Guide
5.1. Assembly
The TTS-55 PRO is designed for easy assembly. Follow the included quick start guide or visual instructions to connect the frame components (X-axis, Y-axis, and base) and mount the laser module. Ensure all screws are tightened securely.
5.2. Connecting to Power and Computer/Device
- Connect the power adapter to the machine and a suitable power outlet.
- For PC connection, use the provided USB cable to connect the engraver to your computer.
- For Wi-Fi operation, ensure your device (computer or smartphone) is connected to the same network as the engraver.
5.3. Laser Head Adjustment
Proper focusing of the laser head is crucial for optimal engraving and cutting results. The TTS-55 PRO features a spiral button for convenient height adjustment and a multi-scale positioning column for precise placement.
- Place your material on the engraving bed.
- Loosen the thumb screw on the laser head bracket.
- Adjust the laser head height using the spiral button until the laser's focal point is correctly set on the material surface (typically a small, sharp dot).
- Tighten the thumb screw to secure the laser head in position.

6. Operating Instructions
6.1. Software Installation and Connection
The TTS-55 PRO is compatible with various software options:
- LaserGRBL: Free software for Windows. Download and install from the official website.
- LightBurn: Paid software for Windows and Mac. Offers advanced features.
- MKSLaser App: Mobile application for Android and iOS devices, available on app stores.
After installing your preferred software, follow its instructions to connect to the engraver via USB or Wi-Fi.

6.2. Engraving and Cutting Process
- Design Preparation: Create or import your design in a supported graphic format (AI, BMP, Dst, Dwg, DXF, DXP, LAS, PLT).
- Material Placement: Place the material securely within the engraving area (300x300mm, extensible). Use the square measuring ruler for precise positioning.
- Focus Adjustment: Adjust the laser head's height as described in Section 5.3 to achieve optimal focus.
- Software Settings: Configure engraving/cutting parameters (speed, power, passes) in your chosen software based on the material type and desired outcome.
- Start Operation: Initiate the engraving or cutting process from the software or via the machine's push button. Monitor the process closely.
6.3. Supported Materials
The TTS-55 PRO can engrave and cut a wide range of materials:
- Engraving: Wood, Aluminum Oxide, 304 Stainless Steel, Ceramic, Dark Stone, Leather, Paper, Acrylic, etc.
- Cutting: Wood (up to 8mm thick), Paper, Leather, some Acrylics.
- Note: For engraving on glass, laser colored paper is needed to aid the process.

7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your laser engraver.
- Cleaning: Regularly clean the machine, especially the laser lens, to prevent dust and debris buildup. Use a soft, lint-free cloth and appropriate lens cleaning solution.
- Belt Tension: Check the tension of the drive belts periodically. They should be taut but not overly tight. Adjust if necessary.
- Lubrication: Apply a small amount of lubricant to the guide rails and moving parts as recommended by the manufacturer (refer to specific instructions if provided with the machine).
- Firmware Updates: Check the TWOTREES official website for any available firmware updates to ensure your machine has the latest features and bug fixes.
8. Troubleshooting
If you encounter issues with your TTS-55 PRO, refer to the following common troubleshooting steps:
- Machine Not Powering On: Ensure the power adapter is securely connected to both the machine and a working power outlet. Check the power switch on the control box.
- Laser Not Firing/Weak Output: Verify the laser module is correctly installed and connected. Check software settings for laser power. Ensure the laser lens is clean and free of debris.
- Poor Engraving/Cutting Quality: Re-check laser focus (Section 5.3). Adjust engraving/cutting speed and power settings in the software. Ensure the material is flat and securely placed.
- Connection Issues (USB/Wi-Fi): For USB, try a different port or cable. For Wi-Fi, ensure the machine and your device are on the same network and the Wi-Fi module is enabled. Restart both the machine and your device.
- Unresponsive Controls: Restart the machine and the software. Check for any error messages in the software.
If the problem persists, contact TWOTREES customer support for further assistance.
9. User Tips
Based on user experiences, here are some tips to enhance your laser engraving and cutting projects:
- Test Settings: Always perform small test engravings on scrap material to find the optimal power and speed settings for new materials or complex designs.
- Ventilation is Key: Even with built-in air cooling, good room ventilation is essential to avoid inhaling fumes and to maintain a clean working environment.
- Material Preparation: For cutting, ensure the material is perfectly flat to maintain consistent focus across the entire cutting area.
- Software Exploration: Take time to explore the features of LaserGRBL or LightBurn. Many tutorials are available online to help you master advanced techniques.
- Keep it Clean: A clean machine, especially the laser lens and rails, will significantly improve performance and extend the lifespan of your engraver.
10. Warranty and Support
The TWOTREES TTS-55 PRO comes with a 1-year warranty. For technical support, warranty claims, or any questions not covered in this manual, please contact TWOTREES customer service through their official website or the retailer where you purchased the product.
Please have your model number (TTS-55 PRO) and purchase details ready when contacting support.





