Free laser settings
Laser cutting and engraving settings
Starting power, speed and pass settings for the most common laser brands and materials, free and without an account. Use them to get close, then run a test card to get exact.
Choose your machine
Each settings page covers the brand’s current models and the materials people actually cut and engrave on them, with starting settings for cutting and engraving. They open in the app, where you pick your model and wattage, choose your speed units, and can print a cheat sheet for the wall next to your laser.
Why settings are only a starting point
A settings table can get you close. It can’t know your machine. The right power and speed for a job depend on things no chart can see:
- The material itself. Two sheets of “3 mm basswood plywood” from different suppliers can have different glue, density and moisture. Acrylic colours absorb differently. Coatings on tumblers vary by brand.
- Thickness. Measure it. A sheet sold as 3 mm can be 2.8 or 3.2 mm.
- Focus. A few millimetres out of focus widens the spot and weakens the cut.
- Lens and mirrors. Dirty or worn optics lose power, slowly enough that you may not notice.
- Tube or diode age. Output drops over a laser’s life.
- Air assist. It changes both cut quality and how far the beam gets through.
Always test on scrap first. Set the middle of a test card to the published starting value, run it on an offcut of the actual sheet you will use, and read off the best cell. That takes ten minutes and saves ruined material.
Test cards and calibration
Two free tools turn a starting value into your value. The laser test card generator burns a power × speed grid on your material, with each cell on its own LightBurn or xTool layer, or with real per-cell G-code for GRBL machines. The calibration center, including the kerf test, measures kerf, size and squareness, focus and more, and saves the corrections for you.
Safety
Settings pages only list materials that are reasonable to laser with proper ventilation. Some materials should never go in a laser at all. PVC, vinyl and anything containing chlorine release corrosive, toxic fumes; so does vinyl “leather”. Polycarbonate tends to catch fire and discolour, and ABS gives off unpleasant, harmful fumes. If you don’t know what a material is made of, don’t laser it. Never leave a running laser unattended, and keep a fire extinguisher suitable for your machine within reach.
xTool, Glowforge, Epilog, OMTech, Thunder Laser, Sculpfun, Atomstack, Aeon and LightBurn are trademarks of their respective owners. Laser Generator Studio is an independent product and is not affiliated with or endorsed by them. Settings are starting points; always test on your own machine.