Quick answer: how to think about wood engraving settings
There is no single set of numbers that works for every laser. The best settings depend on your laser type (diode or CO2), its real optical power, the wood species, the lens focus, and the result you want. What you can rely on is a method: start from a conservative baseline, run a small test on scrap of the same wood, and adjust one variable at a time.
The numbers in this article are starting points drawn from common manufacturer and community guidance. Treat them as a place to begin testing, not as guaranteed results, and check your machine’s manual for its own recommendations.
The settings that matter
Power
Power controls how much energy reaches the wood. Higher power burns deeper and darker. Lower power gives lighter, more delicate marks. Power is usually set as a percentage of the laser’s maximum output, which means 50% on a small diode laser is very different from 50% on a large CO2 tube.
Speed
Speed is how fast the laser head moves. Slower speeds give the beam more time on each spot, producing darker and deeper results. Faster speeds give lighter marks. In practice, power and speed work as a pair: many people fix one and adjust the other.
Focus
A sharp, correctly focused beam gives crisp detail. Deliberately defocusing slightly makes a wider, softer mark, which can speed up filling large areas where fine detail is not needed. If your engraving looks fuzzy, check focus first before changing power.
Resolution (DPI or line interval)
For raster engraving, resolution sets how closely the scan lines sit together. A common range is roughly 250 to 400 DPI for general text and images, with higher values reserved for fine detail. Going very high on wood can cause neighboring lines to overlap and burn more rather than add detail, so more is not automatically better.
Air assist
Air assist blows smoke and debris away from the cut. On wood it helps reduce soot staining and flare-ups. It is generally worth leaving on for engraving, though some people lower the airflow for very light surface marks.
Number of passes
Several lighter passes can give a deeper engraving with less charring than a single heavy pass, at the cost of time.
Starting points by laser type
These are broad, commonly cited starting points. Your results will vary.
| Laser type | Typical use | Starting approach |
|---|---|---|
| Diode (about 5 to 20 W) | Text, logos, light photos | High power with moderate speed for text; reduce power or increase speed slightly for photos so grayscale detail does not char |
| CO2 (about 40 to 100 W) | Engraving and cutting | Low power percentage at high speed; for example, community guidance for a 60 W machine on basswood is in the low tens of percent power at high speed |
Because power percentages mean different things on different machines, one useful idea is to think in terms of effective wattage: the percentage multiplied by the tube or module wattage. If you are moving a known-good setting from a 60 W machine to a 100 W machine, you would reduce the percentage accordingly, then test.
How to run a test grid
A test grid is the fastest route to good settings and saves you from guessing.
- Cut or choose a scrap piece of the same wood you plan to use. Different boards of the same species can behave differently, so use the actual material if you can.
- Draw a grid of small squares in your laser software. Vary power across one axis and speed across the other.
- Label each square so you can match it to its settings afterward.
- Run the grid, let the wood cool, and wipe off residue.
- Pick the square that looks best, then repeat a smaller grid around it to refine.
Record your final settings per material and thickness so you do not have to repeat the process.
How wood choice changes your settings
- Softwoods (pine, cedar): Engrave quickly but can be resinous, uneven in density, and leave more residue. Grain contrast can look blotchy.
- Hardwoods (maple, cherry, oak, alder): Tend to give fine, consistent detail but may need a little more energy. Pale, fine-grained woods like maple and alder generally give clean, high-contrast results.
- Basswood and similar craft woods: Popular for laser work because they are even and predictable.
- Plywood: The glue layers and veneers can cause uneven results (our MDF strength vs plywood guide explains how the sheets are built). Quality laser-grade plywood such as Baltic birch is commonly chosen for this reason.
- MDF: Gives consistent results but produces sticky fumes that can clog filters, so good extraction matters. Check the glue type and your machine’s guidance before cutting it.
Dark woods such as walnut give less contrast, so engravings can look subtle even at higher settings.
How to darken an engraving on wood
If your engraving looks too pale:
- Slow the speed or raise the power in small steps.
- Check that the lens is clean and the beam is in focus.
- Try a second pass at moderate settings rather than one aggressive pass.
- Choose a lighter wood that shows contrast more clearly.
- Check that the surface is level, since uneven height changes the focus.
Be aware that pushing power too high can cause charring, deep burn, or smoke staining rather than a clean dark mark. A finish such as oil, wax, or varnish applied afterward can also change how dark the engraving appears, so test on scrap first.
Preventing scorching and soot
- Apply low-tack masking tape or transfer tape to the surface before engraving, then peel it off afterward.
- Keep air assist on and make sure your extraction or ventilation is working.
- Use a lighter touch with more passes if one pass chars the edges.
- Wipe the engraved area gently with a soft brush or cloth after the job. Some people lightly sand the surface afterward.
How thick of wood can a 60 W laser cut?
This depends heavily on the wood, the focus, the lens, and how many passes you are willing to run. As a general guide, a 60 W CO2 laser commonly handles thin sheet material such as 3 mm plywood comfortably, and thicker boards may require multiple passes. Beyond roughly the 6 to 10 mm range, results often get worse as the cut widens and the edges char. Hardwoods and glued plywoods are harder to cut than softwoods and basswood. Check your manufacturer’s stated limits and test on scrap.
How to laser engrave a round object
Engraving cylinders such as tumblers or wooden dowels needs a rotary attachment. A rotary device turns the object while the laser engraves, so the surface stays at a consistent distance from the lens. If you try to engrave a curved item on a flat bed without one, the focus distance changes across the curve and the result tends to be distorted or only partly marked. General steps:
- Set up the rotary according to your machine’s instructions and enable rotary mode in your software.
- Enter the object’s diameter so the software can scale the design correctly.
- Level the object and focus on its highest point.
- Test on a similar scrap object first.
Materials you should never put in a laser cutter
Never cut or engrave material that releases toxic or corrosive fumes. The best-known example is PVC (vinyl), which can release chlorine-containing fumes that are harmful to people and can corrode the machine (see PVC vs PETG for why PVC is also unsuitable for 3D printing). Also avoid materials you cannot identify, as well as anything your manufacturer lists as unsafe. When in doubt, check the material’s safety data sheet and your laser’s manual. If you are working with plastics, our acrylic laser cutting settings guide covers what generally works and what to avoid.
Troubleshooting common problems
| Problem | Likely causes | What to try |
|---|---|---|
| Engraving too light | Speed too fast, power too low, out of focus | Slow down or raise power slightly; recheck focus |
| Heavy charring or burn marks | Power too high or speed too slow | Reduce power, add masking, use more passes |
| Blurry or doubled edges | Out of focus, loose belts, vibrating material | Refocus, check mechanics, secure the workpiece |
| Uneven darkness | Wood density or grain varies; board not flat | Pick an even wood; flatten the board |
| Soot stains around the design | Weak air assist or extraction | Increase air assist, mask the surface |
Safety basics
Wear laser safety glasses rated for your laser’s wavelength, never leave a running laser unattended, keep a suitable fire extinguisher nearby, and make sure fumes are vented outside or filtered properly. Wood engraving creates smoke and fine particles, so ventilation is not optional.
Related guides
If you are also making models or enclosures from laser-cut parts, see our walkthrough on how to make models of buildings, which covers using a laser cutter for model parts.
FAQ
What is the best wood for laser engraving?
Pale, fine-grained woods such as maple, alder, cherry, and basswood tend to give clean results with good contrast. Laser-grade plywood is also widely used.
Do I need air assist for engraving wood?
It is generally recommended because it reduces soot and flare-ups, though you may adjust the airflow depending on the job.
Can I use the same settings on a different laser?
Not directly. Differences in power, lens, and speed calibration mean you should treat borrowed settings as a starting point and test on scrap.