1. Safety Information
The ACMER K1 is a Class 1 enclosed laser product. Adhere to all safety guidelines to prevent injury or damage. Always wear the provided safety glasses when operating the machine, even with the enclosure closed, as a precaution. Ensure the work area is well-ventilated or use the exhaust system to manage fumes and smoke. Never leave the machine unattended during operation. Keep children and pets away from the device. Do not engrave or cut materials that produce toxic fumes or are highly flammable without proper ventilation and safety measures.
2. Product Overview
2.1 Package Contents
Upon unboxing your ACMER K1, verify that all components are present:
- K1 Machine
- Laser Module
- Power Adapter
- USB Data Cable
- Safety Glasses
- Tool Kit
- Dust Cover
- User Manual
- Exhaust Pipe
This video demonstrates the unboxing and initial setup of the ACMER K1 laser engraver, showing the included components and basic assembly steps.
2.2 Key Features
- Class 1 Enclosed Design: Provides a safe operating environment by containing laser activity and reducing smoke and odors with a built-in exhaust fan.
- Multi-Power Blue Diode Laser: The 12W output option is suitable for engraving and cutting various non-metallic materials like wood, plywood, and acrylic.
- Precision Engraving: Features a 0.08mm × 0.08mm laser spot and 0.01mm repeat positioning accuracy for fine detail.
- Compact & Lightweight: Designed for desktop use with a 150mm × 150mm work area, weighing only 2.4kg for portability.
- Wide Compatibility: Supports macOS, Windows, and Linux operating systems, compatible with software like AcmerTool, LightBurn, and LaserGRBL.

The image highlights the compact 150mm x 150mm working area of the ACMER K1, suitable for various small-scale projects.

This image illustrates the integrated exhaust fan, designed to clear smoke and fumes from the engraving chamber during operation.

A visual guide demonstrating the cutting depth capabilities of different laser power options (3.5W, 7W, 12W) across materials such as plywood, black acrylic, and Paulownia wood.

This diagram emphasizes the high precision of the ACMER K1, showcasing its 0.01mm accuracy and fine laser spot for detailed engraving.

The image demonstrates the wide compatibility of the ACMER K1 with different operating systems (Windows, macOS, Linux) and popular engraving software.
3. Setup and Installation
3.1 Hardware Installation
Follow these steps to set up your ACMER K1 machine:
- Unpack the Machine: Carefully remove all components from the packaging.
- Install the Laser Module: Gently insert the laser module into its designated slot on the gantry and secure it. Connect the module's cable to the corresponding port.
- Install the Exhaust Pipe: Attach the exhaust pipe adapter to the rear port of the machine.
- Connect Power and Data Cables: Plug the power adapter into the machine and a power outlet. Connect the USB data cable from the machine to your computer.
- Release Emergency Stop: Before powering on, rotate the red emergency stop switch on the back of the machine to release it.
This video provides a visual guide for the physical installation of the laser module, exhaust pipe, and cable connections for the ACMER K1.
3.2 Software Installation (LightBurn)
The ACMER K1 is compatible with LightBurn software. Follow these steps to install and configure LightBurn:
- Download LightBurn: Visit lightburnsoftware.com to download the latest version of LightBurn for your operating system.
- Install Software: Run the installer and follow the on-screen instructions to complete the installation.
- Create New Device: Open LightBurn. In the 'Devices' window, click 'Create Manually' or 'Find My Laser' if available. Select 'GRBL' as the controller type.
- Customize Device Name: Name your device (e.g., "ACMER K1") for easy identification.
- Set Workspace Dimensions: Configure the X and Y axis lengths to 150mm x 150mm to match the physical work area of the K1.
- Set Origin and Auto-Home: Choose your preferred origin (e.g., Front Left) and enable 'Auto home your laser on startup' for convenience.
This video demonstrates the process of installing LightBurn software and configuring the ACMER K1 device within the software interface.
4. Operating Instructions
4.1 Focusing the Laser
Accurate focusing is crucial for optimal engraving and cutting results. Use the provided focusing shim from the tool kit:
- Place your material on the work area.
- Position the laser module directly above the material.
- Place the focusing shim between the laser module and the material.
- Adjust the laser module's height until it gently touches the shim.
- Remove the shim. The laser is now correctly focused for your material.
4.2 Engraving and Cutting Parameters
Optimal speed and power settings vary significantly based on the material type and desired effect (engraving depth, cutting through). It is recommended to perform test engravings on scrap material to determine the best parameters for your specific project.
This video demonstrates the ACMER K1 engraving on various materials, showcasing different parameter settings for optimal results. Note that specific parameters should be adjusted based on your actual material and desired outcome.
4.3 Starting an Engraving Job
- Prepare Design: Create or import your design into LightBurn.
- Place Material: Securely place your material on the machine's work area.
- Preview Area: Use the "Frame" function in LightBurn to preview the laser's path on your material, ensuring correct placement.
- Set Parameters: Adjust speed, power, and other settings in LightBurn according to your material and desired outcome.
- Start Job: Click "Start" in LightBurn to begin the engraving or cutting process.

An example of the ACMER K1 laser engraver in operation, creating a design on a wooden surface.
This short video demonstrates the precision of the ACMER K1 laser engraver by creating a detailed image on a delicate leaf.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your ACMER K1:
- Clean Laser Lens: Periodically clean the laser lens with a soft, lint-free cloth and appropriate lens cleaner to maintain beam quality.
- Clean Work Area: Remove debris and residue from the work area and grid after each use.
- Check Exhaust Fan: Ensure the built-in exhaust fan is clear of obstructions to maintain effective smoke and odor removal.
- Inspect Components: Regularly check for any loose screws, worn belts, or damaged cables. Tighten or replace as necessary.
Note: After engraving metal materials, wipe the engraved surface with a damp cloth to remove any burnt residue and reveal the clean engraving.
6. Troubleshooting
If you encounter issues with your ACMER K1, refer to the following common troubleshooting tips:
- Machine Not Connecting:
- Ensure the USB data cable is securely connected to both the machine and your computer.
- Verify that the emergency stop switch on the back of the machine is released (rotated).
- Check LightBurn device settings to ensure the correct port is selected and the device is recognized.
- Poor Engraving/Cutting Quality:
- Confirm the laser is correctly focused using the focusing shim.
- Adjust speed and power settings in LightBurn. Different materials require different parameters.
- Ensure the material is flat and securely placed on the work area.
- Laser Not Firing:
- Check that the power adapter is properly connected and the machine is powered on (green light on power button).
- Verify the laser module is correctly installed and its cable is securely connected.
- Ensure the lid of the enclosure is fully closed, as a safety interlock may prevent the laser from firing if open.
For further assistance, refer to the online support resources or contact ACMER customer service.
7. Specifications
| Feature | Detail |
|---|---|
| Model | K1 |
| Laser Power | 12000mW (12W) |
| Work Area | 150mm x 150mm |
| Laser Spot Size | 0.08mm x 0.08mm |
| Repeat Positioning Accuracy | 0.01mm |
| Max Motion Speed | 10,000mm/min |
| Compatibility | macOS, Windows, Linux (LightBurn, LaserGRBL) |
| Supported Formats | NC, DXF, BMP, JPG, PNG |
| Product Dimensions | 1 x 1 x 1 inches |
| Item Weight | 6.89 pounds |
8. Warranty and Support
The ACMER K1 Laser Engraver comes with a standard manufacturer's warranty. For detailed warranty information and to register your product, please visit the official ACMER website or contact their customer support.
For technical support, troubleshooting guides, and software updates, refer to the resources available on the ACMER official website or the LightBurn software community forums. You can also find additional assistance through the seller, Acmer Official, on Amazon.





