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1.2 Laser GRBL

LaserGRBL: Free, Powerful, and Easy to Use

LaserGRBL logiciel gratuit

Unlike many expensive engraving programs, LaserGRBL is:

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

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

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..