If you're using a LONGER Ray5 miniS laser engraver with LightBurn, importing the correct .lbdev configuration file is one of the first and most important setup steps. Without the proper device profile, LightBurn may not communicate with your machine correctly, leading to connection or configuration issues.
This guide walks you through the complete setup process, including where to download the official configuration file, how to import it into LightBurn, how to verify the device settings, and what to do if the import doesn't work.
Quick Answer
To import a LightBurn configuration file for the LONGER Ray5 miniS:
- Download the
Ray5 miniS.lbdevfile from the LONGER firmware download page. - Open LightBurn.
- Click Devices in the Laser control module.
- Click Import.
- Select the
.lbdevfile. - Click OK.
- Set the speed unit to
mm/minin Edit > Settings.
The machine should then appear in the Devices list, and macro commands should appear in the Console window.
Why This Process Matters
Importing the correct LightBurn configuration file ensures that your laser engraver communicates properly with the software.
Without the correct .lbdev file, users may experience:
- Incorrect machine dimensions
- Communication problems
- Improper movement behavior
- Missing macro commands
- LightBurn connection issues
Many beginners struggle during the first setup because the laser engraver is not properly configured in LightBurn. The configuration file simplifies the setup process and helps avoid manual configuration mistakes. Community discussions also show that missing or incorrect configuration files can cause operational issues in LightBurn.
Before You Start
Before importing the LightBurn configuration file, make sure:
- Your LONGER Ray5 miniS is assembled correctly
- LightBurn is installed on your computer
- Your USB connection is functioning properly
- The correct
.lbdevfile has been downloaded
If LightBurn is launching for the first time, the software may automatically open the New Device Wizard. If not, you can manually import the device configuration.
Requirements
You will need the following:
- A computer with LightBurn installed
- LONGER Ray5 miniS laser engraver
- USB connection cable
-
Ray5 miniS.lbdevconfiguration file - Access to the official LONGER firmware download page
Download the configuration file from the official LONGER firmware page:
LONGER Firmware Download Page
Precautions
Before beginning the setup process, keep these important points in mind:
- Use only the correct configuration file for your machine model.
- Do not import configuration files intended for other laser engravers.
- Avoid disconnecting the USB cable during setup.
- Follow official machine specifications or instructions.
- If LightBurn cannot detect the machine, verify cable connections and drivers first.
- Some connection problems may be related to firmware or communication settings.
Step-by-Step Tutorial
Step 1: Download the Ray5 miniS.lbdev Configuration File
Download the Ray5 miniS.lbdev file from the official LONGER firmware download page. Then the configuration file should be saved to your computer and ready for import into LightBurn.
Important Notes:
- Make sure the downloaded file matches your exact machine model.
- Do not rename the
.lbdevfile. - Store the file in an easy-to-find location such as the Downloads folder.
Official download source: LONGER Download Center
Step 2: Launch LightBurn
Open LightBurn on your computer. If this is your first time launching LightBurn, the New Device Wizard should appear automatically. You should see the LightBurn interface and possibly the setup wizard.
Important Notes:
- If the wizard does not appear automatically, you can manually import the device in the next step.
Step 3: Open the Devices Menu
In the Laser control module, click Devices. Then the Devices window will open, allowing you to add or import laser engraver profiles.
Important Notes:
- The Devices menu is where LightBurn stores connected laser engraver configurations.
Step 4: Import the Configuration File
- Click Import
- Locate the
Ray5 miniS.lbdevfile - Select the file
- Click OK
- Then the Ray5 miniS configuration should be added to LightBurn.
Important Notes:
- Make sure you select the correct
.lbdevfile. - Wait for LightBurn to finish importing before closing the window.

Step 5: Verify Successful Import
Check the following inside LightBurn:
- Macro commands appear in the Console window
- Ray5 miniS appears under Devices in the Laser window
Then the machine should now be listed as an available device.
Important Notes:
If the device does not appear:
- Restart LightBurn
- Re-import the configuration file
- Verify the downloaded file is not corrupted
Users have reported configuration-related connection issues when incorrect files or firmware versions were used.
Step 6: Change the Speed Unit to mm/min
- Go to Edit in the taskbar
- Select Settings
- Choose
mm/minas the unit - Click OK
LightBurn will now display speed values in millimeters per minute.
Important Notes:
Using the recommended speed unit helps maintain consistency with machine settings and tutorials.



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