Laser Cutting vs Engraving vs Scoring: The Difference

A laser can do three different jobs on the same sheet, often in one run: cut parts out, engrave pictures and text, and score fine lines. Knowing the difference between laser cutting vs engraving vs scoring helps you set up your files correctly, choose sensible settings, and avoid the classic beginner result of a design that burns straight through where it should only have marked the surface.

The three operations at a glance

Cutting goes all the way through the material along a line. The result is a separate part.
Engraving removes or darkens the surface across a filled area. The laser sweeps back and forth like a printer, building the image line by line.
Scoring (sometimes called vector engraving, marking or etching a line) follows a line like a cut but only marks the surface.

Cutting and scoring both follow paths. Engraving fills areas. That single difference explains most of how you set up files and settings.

Laser cutting vs engraving vs scoring in detail

Cutting

The laser follows a vector path at high power and slow speed, with enough energy to burn or melt through the full thickness.

Used for: outlines, holes, slots, tabs, finger joints.
File setup: a hairline stroke, no fill, on its own colour (often red).
What controls it: power, speed, number of passes, focus and air assist.
What to watch: kerf (the width of material removed), charring on edges, and parts tipping or moving once they are free.

Engraving

The head moves left and right across the area, firing the laser where the design is filled. Each pass is one row, and rows are spaced by the "line interval" or DPI setting.

Used for: text, logos, photos, textures, solid shapes and backgrounds.
File setup: filled shapes (often blue) or raster images.
What controls it: power, speed, line interval, and for photos the dithering mode.
What to watch: engraving is much slower than cutting for large areas, because the head covers every row. Doubling the area roughly doubles the time.

Scoring

The laser follows a vector path, like a cut, but with low power or high speed so it only marks the top layer.

Used for: fold lines in card and leather, fine line art, outlines around engraved areas, panel details, alignment marks.
File setup: a hairline stroke, no fill, on its own colour (often green).
What controls it: mostly speed and power, usually one pass.
What to watch: scoring too deep weakens the part. On card, a score that is too strong becomes a cut.

How your software tells them apart

Laser software assigns settings by colour or layer, not by guessing. In LightBurn, each colour becomes a layer, and you set each layer to Line, Fill or Image mode. Line mode is used for both cutting and scoring; the difference is only the power and speed. Fill mode engraves the inside of closed shapes.

Glowforge and xTool Creative Space work the same way: you pick Cut, Engrave or Score for each colour group.

A clear colour scheme makes this easy. Many makers use:

Red #FF0000 for cut
Blue #0000FF for engrave (fill)
Green #00FF00 for score
Black for reference marks, such as part names or notes, which you set not to run

This is the scheme used in files from the Digital Creation laser cut tool, so a box or sign drops straight onto three working layers. If you are still learning how to set up your own designs, the guide on how to make laser cut files covers colours, paths and checks.

Starting settings to test

Every machine is different. Tube or diode power, lens, focus, air assist, and the batch of material all change the result. Use these only as rough starting points for a CO2 laser on 3 mm wood, then adjust after a test.

Cut: high power (roughly 60 to 90%), slow speed (roughly 8 to 20 mm/s), one pass. Diode lasers often need several slower passes.
Engrave: lower power (roughly 15 to 35%), high speed (roughly 150 to 400 mm/s), line interval about 0.08 to 0.1 mm.
Score: low to medium power (roughly 10 to 25%), medium to high speed (roughly 80 to 200 mm/s).

The best way to find your numbers is a material test grid: a set of small squares or lines, each with a different power and speed. LightBurn has a Material Test tool built in, and xTool and Glowforge offer similar test options.

Order of operations matters

Run the jobs in this order:

Engrave first. The sheet is still whole and flat, so nothing shifts.
Score second. Lines line up with the engraving.
Cut last, inner shapes before outer outlines. Holes and slots go before the outline, so the part does not drop or move before its details are cut.

Most laser software can do this automatically. In LightBurn, set the layer order in the Cuts / Layers window and turn on the option to cut inner shapes first in the optimisation settings.

Common mistakes and how to fix them

The engraving cut through. Power is too high or speed too low for Fill mode, or the layer was set to Line by mistake. Check the mode and run a test grid.

The score line went through the card. Lower the power or raise the speed. Thin card and paper need very light settings; start low and work up.

A shape engraved when it should have cut. It had a fill. Remove the fill so it is only a stroke, or change the layer to Line mode.

Text only engraved as an outline. The text layer was on Line mode, which traces the letter edges. Switch it to Fill.

A long, slow job. Large engraved areas eat time. Consider scoring an outline instead, or reduce the engraved area.

Parts shifted mid-job. Cutting happened before engraving, or small parts tipped. Reorder operations and use hold-down pins or a honeycomb bed.

Which one does your design need?

Ask what each line or area should do:

Should it come out as a separate piece? Cut.
Should it be a shaded area, text or picture? Engrave.
Should it be a thin visible line, or a fold? Score.

Many good designs use all three. A coaster might have an engraved logo, a scored border and a cut outline. A box might have engraved text on the lid and cut finger joints everywhere else. For jointed designs, also allow for the width of the beam: the article on laser kerf explains why cut parts come out a little smaller than drawn.

If you want a sample file to practise all three layers, make a coaster or sign from your own size and inspect the colours in your software.

Whatever you run, stay with the machine, keep ventilation on, and keep a fire extinguisher nearby. Never cut PVC, vinyl or other chlorine-containing plastics.

Frequently asked questions

What is the difference between laser engraving and scoring?

Engraving fills an area by scanning back and forth across it. Scoring follows a single line, like a cut, but at low power so it only marks the surface.

Is laser etching the same as engraving?

Mostly, yes. Etching usually means a shallow surface mark, while engraving often implies more depth, but many people and programs use the words interchangeably.

Why do my cut lines engrave instead of cut?

Either the layer is set to Fill or Engrave mode, or the shape has a fill. Remove the fill, set the layer to Line or Cut, and check the power is high enough.

Can I cut and engrave in one job?

Yes. Put each operation on its own colour or layer, set the order to engrave first and cut last, and run them together.