1. Introduction
This manual provides essential information for the safe and effective operation of your LASER TREE K1 Mini 5W Laser Engraver. Please read this manual thoroughly before assembly, operation, or maintenance to ensure proper usage and to prevent damage or injury. This device is designed for high-precision engraving and cutting on various materials, offering a 12x12 inch (300x300mm) work area.
2. Safety Information
The LASER TREE K1 Mini 5W is a Class 4 laser product. Improper use can result in serious injury, including eye damage, skin burns, and fire. Always adhere to the following safety guidelines:
- Eye Protection: Always wear the provided laser safety goggles when the laser is operating. Never look directly at the laser beam or its reflection.
- Ventilation: Operate the engraver in a well-ventilated area to dissipate fumes and smoke produced during engraving or cutting.
- Fire Hazard: Keep a fire extinguisher nearby. Do not leave the machine unattended during operation. Certain materials are highly flammable.
- Material Compatibility: Only engrave or cut approved materials. Avoid reflective, transparent, or blue/purple/white materials, and non-anodized bare aluminum, as these can cause unpredictable laser behavior or damage.
- Children and Pets: Keep children and pets away from the operating area.
- Emergency Stop: Familiarize yourself with the location of the power switch for immediate shutdown in an emergency.
3. Product Overview
The LASER TREE K1 Mini 5W Laser Engraver features a 5W output power blue laser diode, offering stable and efficient performance for various DIY projects. It boasts a large 300x300mm engraving area and a full metal aluminum design for durability and precision.
Key Features:
- Powerful 5W Laser: Equipped with a 5W output power blue laser diode for high-efficiency engraving and cutting, with a lifespan of up to 20,000 hours.
- High Precision: Utilizes beam compressed spot technology for enhanced accuracy, with a fixed 23mm focal length and a spot size of 0.16*0.04mm.
- Fast Operation: Supports engraving speeds up to 25,000 mm/min.
- Wide Material Compatibility: Engraves and cuts plywood, pine wood, stone, coated glass, brushed/mirror stainless steel, black acrylic, plastic, leather, anodized aluminum, and lacquered metal.
- Eye Protection Design: Includes safety goggles and a magnetic cover to minimize eye irritation.
- Adjustable Support Feet: Four support feet increase the working height for engraving and cutting operations.
- Easy Focus Adjustment: A dedicated knob allows for simple adjustment of the laser module height to achieve optimal focus based on material thickness.

Figure 3.1: Overview of the LASER TREE K1 Mini 5W Laser Engraver, highlighting its 300x300mm work area.

Figure 3.2: The 5W output power laser module demonstrating its cutting capabilities on various materials such as 3mm acrylic, 3mm MDF, and 4mm plywood.

Figure 3.3: Illustration of the laser's fine spot size (0.16x0.04mm), enabling high-precision engraving.

Figure 3.4: The laser engraver in operation, emphasizing the importance of eye protection with safety goggles and the laser module's protective cover.

Figure 3.5: Detail of the adjustable support feet, designed to increase the working height for various engraving and cutting tasks.
4. Setup
The LASER TREE K1 Mini 5W is designed for quick and easy installation. All parts are pre-packaged in clearly labeled bags. Refer to the detailed illustrated user manual included in your package for specific step-by-step assembly instructions.
General Assembly Steps:
- Unpack all components and verify against the packing list.
- Assemble the frame according to the provided diagrams.
- Install the laser module onto the gantry.
- Connect all necessary cables (power, USB).
- Ensure the machine is placed on a stable, level surface in a well-ventilated area.
5. Operating Instructions
The K1 Mini 5W laser engraver is compatible with popular engraving software such as LaserGRBL (Windows XP/7/8/10) and LightBurn (Mac OS, Linux). LightBurn is paid software.
Software and Connection:
- Install your preferred software (LaserGRBL or LightBurn) on your computer.
- Connect the engraver to your computer using the provided USB cable.
- Power on the engraver.

Figure 5.1: The LASER TREE 5W laser engraver connects to a computer via USB and is compatible with LightBurn and LaserGRBL software.
Basic Operation Steps:
- Prepare Material: Place your chosen material on the engraving bed.
- Adjust Focus: Use the focus adjustment knob to set the correct focal length for your material. The fixed focal length is 23mm.
- Load Design: Open your design file in the engraving software.
- Set Parameters: Adjust engraving/cutting parameters (speed, power, DPI) based on the material. Refer to the Material Compatibility & Settings section.
- Start Operation: Initiate the engraving or cutting process from the software. Always supervise the machine during operation.
Video 5.1: This video demonstrates the LASER TREE 5W laser engraver in action, showcasing its engraving capabilities on various materials like stainless steel, leather, and wood (zelkova). It highlights the precision and speed of the machine for different applications.
6. Material Compatibility & Settings
The LASER TREE K1 Mini 5W is compatible with a wide range of materials. Optimal settings vary depending on the material type and desired outcome (engraving vs. cutting). Always perform test engravings on scrap material to find the best parameters.
Compatible Materials:
- Plywood, Pine wood, Bamboo, Walnut
- Stone, Coated glass
- Brushed/Mirror stainless steel, Anodized aluminum, Lacquered metal
- Black acrylic, Plastic
- Leather
Incompatible Materials:
- Blue, Purple, White, or Transparent materials
- Non-anodized bare aluminum
Recommended Engraving Parameters:

Figure 6.1: A table outlining recommended settings for different materials, including focus fixed plate distance, speed (mm/min), power (%), and interval/quality (Lines/mm).
| Engraving Material | Focus Fixed Plate (mm) | Recommended Speed (mm/min) | Power (%) | Interval (mm) / Quality (Lines/mm) |
|---|---|---|---|---|
| Acrylic | 5 | 6,000 | 30 | 0.04 / 10 |
| Plywood | 5 | 6,000 | 50 | 0.1 / 10 |
| MDF | 5 | 6,000 | 20 | 0.05 / 10 |
| Pine board | 5 | 6,000 | 50 | 0.06 / 10 |
| Bamboo | 5 | 6,000 | 40 | 0.05 / 10 |
| Stainless steel | 5 | 1,200 | 100 | 0.04 / 10 |
| Anodic alumina | 5 | 6,000 | 50 | 0.05 / 10 |
| Leather | 5 | 6,000 | 10 | 0.05 / 10 |
Note: These parameters are starting points. Fine-tuning may be required for specific material batches or desired effects.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your laser engraver.
- Cleaning: Regularly clean the engraving bed, gantry rails, and laser lens. Use a soft, lint-free cloth and appropriate cleaning solutions for the lens.
- Lubrication: Periodically lubricate the moving parts (e.g., linear rails) as recommended in the detailed manual to ensure smooth operation.
- Firmware Updates: Check the LASER TREE official website for any available firmware updates for your device.
8. Troubleshooting
If you encounter issues, refer to the following common troubleshooting tips:
- Laser Not Firing: Check power connection, USB connection, and ensure the laser module is properly seated. Verify software settings for laser power.
- Poor Engraving/Cutting Quality: Re-check focus, adjust speed/power settings, ensure material is flat and secure, and clean the laser lens.
- Software Connection Issues: Ensure correct drivers are installed, try a different USB port or cable, and restart both the engraver and computer.
- Machine Not Moving: Check cable connections to motors, ensure no physical obstructions, and verify software commands.
For further assistance, contact LASER TREE customer support.
9. Specifications
| Specification | Detail |
|---|---|
| Model Number | K1 Mini 5w |
| Laser Output Power | 5W (5000mW) |
| Work Area | 12 x 12 inches (300 x 300 mm) |
| Product Dimensions | 13 x 13 x 6 inches |
| Item Weight | 9.26 pounds |
| Focal Length | Fixed 23 mm |
| Spot Size | 0.16*0.04mm |
| Max Engraving Speed | 25,000 mm/min |
| Software Compatibility | LaserGRBL (Windows), LightBurn (Mac OS, Linux) |
| Manufacturer | LASER TREE |
10. Warranty and Support
LASER TREE is committed to providing high-quality products and customer satisfaction. Your product is supported by a professional engineer team ready to provide timely troubleshooting and after-sales support for all pre-sale and usage questions.
For warranty information or technical support, please refer to the contact details provided with your product packaging or visit the official LASER TREE website.