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Find My Laser

In the Devices page, click the 'Find My Laser' button, and you'll see this screen:

FindMyLaser

Make sure your laser is powered on, connected to your computer with a USB cable, and has completed any startup sequence it needs to, like homing. When the laser is ready, click Next.

After a short scan, LightBurn will list the devices it was able to recognize:

FindResults

In the above image, I have two lasers connected to my computer - the first, a GRBL controller on COM9, and the second, a Ruida DSP controller on COM3. Select your laser and click 'Add Device'.

Is your laser a GCode or DSP device? What if it wasn't found?

GCode devices

If you have a GCode controller, you'll be asked if your machine is an X-Carve or Shapeoko, because there are some specific settings that need to be configured for those machines. If you have one, click the appropriate button, if not, click 'Other'. You may be asked where the origin of your machine is, and if you want to home on startup. Nearly all GCode systems use the front-left as the origin.

If your machine has homing or limit switches, enable the homing on startup, otherwise leave it off. If you see 'Error: 9' in the console later, it means you've enabled this feature, but your machine isn't configured for homing.

With some GCode devices, additional configuration of either LightBurn or the controller may be necessary.

Next:

DSP devices

If you have a DSP controller, the next screen will ask you where your machine origin is. This is the corner the machine goes to when looking for the homing switches when it powers up. Click the home corner. If you get it wrong, things may be backwards or upside down, but don't worry - you can easily change it later.

When your laser is added, click 'OK' on the Devices page to exit.

Next:

What if my laser isn't found?

If LightBurn can't find your laser, it could be for a number of reasons:

  • Missing drivers - If your laser came with its own software, install it. Even if you don't plan to use it, sometimes they contain necessary drivers that aren't included with LightBurn.
  • Can't connect - Only one application can talk to your laser at once. If you run other software, like RDWorks, Easel, Carbide Create, AutoLaser, LaserCAD, etc, make sure that software is not running when you run LightBurn.
  • Networked device - LightBurn can't automatically configure a network-connected laser. For this, you'll have to click 'Create Manually' and follow the steps.
  • Marlin controller - If you are using a Marlin controller, they have a variety of baud rates and configuration options, and they take significantly longer to reset than most other controllers, so it's not practical to auto-search for them - click 'Create Manually' and follow the steps.