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Laser GRBL

1. LaserGRBL: Free, Powerful, and Easy to Use

LaserGRBL logiciel gratuit

Unlike many expensive engraving programs, LaserGRBL is:

  • Free and open-source
  • Compatible with the Yumi L-A4
  • User-friendly
  • Supports multiple file formats (JPG, PNG, SVG...)

The perfect choice to get started without investing in paid software.

2. Prepare and Test Your Engraving

Honeycomb

Download and install LaserGRBL, then connect your Yumi L-A4 to your PC.

liege

Place your material and adjust the laser head height using the included guide.

Lunettes de protection laser

Connect the Yumi L-A4 and run a test engraving.

Lunettes de protection laser

Perform a burn test.

Honeycomb

Adjust the size based on your material (in mm).

liege

Position the laser head so it starts from the bottom-left corner of the engraving area.

Honeycomb

Start the test engraving.

liege

The ideal settings produce a black, clean, and even engraving — without burning or digging into the material. Keep notes of your best parameters for future projects..