3.2 Set Auto Focus, Reset Z-Axis, Lower Z-Axis by 2mm, and Red Crosshair Offset in LightBurn Software

3.2 Lightburn Basic setup and software usage

Basic settings in lightburn

3.2 How to Set "Autofocus"， “Z-axis reset”， “Z Down 2mm” “Red Cross Offset to Laser” in Lightburn

3.2.1 How to use "Autofocus" function :

  1. Turn on the "Autofocus" function.
  2. Select the engraving file, the machine will automatically start focusing after clicking Start, and start engraving after the focus is completed.
      3.Find "Window" in the top navigation bar, and enable "Console" function in the drop-down menu.

  1. Select any custom button, right click mouse to pop up the button setting page, enter the name of the button in "Button Label", enter [$HZ] under "Macro contents"
  1.  After clicking OK, a button with the corresponding function will be generated

3.2.2, How to raise the Z-axis to the highest - Z-axis reset

  1. When you need to engrave or cut a thicker object, you need to raise the z-axis to put the object in, and then you can reset the z-axis.
  1. Find "Window" in the top navigation bar, and enable "Console" function in the drop-down menu, Just like the steps for autofocus.
  1. Select any custom button, right click mouse to pop up the button setting page, enter the name of the button in "Button Label", enter [$J=G91 Z100 F200] under "Macro contents
  1. After clicking OK, a button with the corresponding function will be generated.

3.2.3 How to drop the laser head 2mm

  1. When you cut thick objects, you can drop the laser head by 2mm, making the focal length drop by 2mm for a perfect cut!
  1. The steps are the same as before.
  2. Select any custom button, right click mouse to pop up the button setting page, enter the name of the button in "Button Label", enter [$J=G91 Z-2 F200] under "Macro contents" .

3.2.4 How to set Red Cross Offset to Laser in Lightburn

1, Launch Lightburn and Connect to the device.

2, Go to edit-> Device Settings -> Laser Offset -> Enable Pointer Offset.

3, For GM105 and GM120, fill in -12mm at X and -12mm at Y;For GM110, fill in -12mm at X and - 10.6mm at Y

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Step 1: Pre-Use Check - Machine Inspection 

Before using your machine, it's important to ensure everything is properly set up. This step guides you through basic checks like power connections, fastenings, and the laser head position to help prevent common issues and ensure smooth operation.

1.1 Install the Laser Head

Before use, please ensure the laser head is properly installed. You can refer to our short video to check if the installation is correct.

1.2 Check the Power Connection

Make sure the power is connected properly, and the power cord is secure to avoid any loose connections.

1.3 Check the Air Tube and Limit Switch Connections

Please confirm that the air tube and limit switch are correctly connected to prevent operational errors or malfunctions during engraving.

1.4 Ensure the Emergency Stop Switch is Released

Before use, make sure the emergency stop switch on the right side has been rotated and released, allowing the machine to start normally.Before use, make sure the emergency stop switch on the right side has been rotated

1.5 Power Indicator Light is On

Check if the machine’s power indicator light is on, which indicates that the machine is powered properly.

When the power button indicator light keeps flashing:

Step 1: Press and hold the power button on the machine to turn it off, then unplug the USB cable and the power cord.

Step 2: Reinsert the USB cable and power cord into the machine.

Step 3: Briefly press the power button on the machine to turn it on. The machine should start up normally.

If the indicator light still keeps flashing after completing the above steps, please install the software patch:

1.Download the GRBL_V1.10_D_0408 software: Click here to download

2.Follow the video steps:

3.Then check if the laser head is functioning properly. If it’s not, please contact our after-sales service.

1.6 Close the Lid Before Starting the Engraving

Before starting the engraving process, please ensure that the machine’s lid is closed for safe operation.