Laser-cut art and signage: the fine detail the beam can (and can’t) hold
Screens, signs, monograms and filigree — decorative work lives or dies on detail. Where the beam holds a crisp line, where it needs a bridge, and how to send art that cuts.
COVER · SHOP FLOORThe beam is a 0.2 mm pen
Decorative cutting is where the fiber laser shows off — hairline detail no router or waterjet can touch. But the beam has a width, around 0.2 mm, and it dumps heat. Push finer than the material allows and thin strands overheat, sag and discolour. Know the limits and the panel comes off crisp.
How fine can it go?
The honest limit scales with thickness — thin material holds fine detail, thick material can’t. As a starting point for mild steel:
| SHEET t | MIN SLOT / GAP | MIN WEB (STRAND) | MIN TEXT HEIGHT |
|---|---|---|---|
| 1.0 mm | 0.3 mm | 0.8 mm | 4 mm |
| 1.5 mm | 0.4 mm | 1.2 mm | 5 mm |
| 2.0 mm | 0.5 mm | 1.6 mm | 6 mm |
| 3.0 mm | 0.7 mm | 2.4 mm | 8 mm |
Want more detail? Drop to a thinner sheet. A 1.5 mm screen holds twice the delicacy of a 3 mm one.
Letters need bridges
Anything with an enclosed hole — the centres of O, A, R, 8, and every counter in a logo — drops out as a loose disc the moment it’s cut free. Stencil fonts solve it by design; for normal type we add tiny bridges (tabs) that hold the island in place. Say where they can go, or let us place them where they read least.
Every closed loop in your artwork is a part that falls on the floor unless we tie it in. Bridges are not damage — they’re what makes the letter stay a letter.
Send art that cuts
Great decorative work usually fails at the file, not the machine. Before you send it:
- 01 Outlines, not strokes Convert every line and font to a filled outline (curves). A hairline stroke has no width to cut.
- 02 One clean closed path per shape No double lines, no open gaps — the same rules as any cut file.
- 03 Real size, in millimetres A logo that looks fine at business-card size may be under the detail limit at 50 mm.
- 04 Flag the islands Tell us which counters must stay — we’ll bridge them so nothing drops out.
Got a design to cut? Send the vector art and the panel size — we’ll flag the detail limits, add any bridges it needs, and cut, finish and coat it in one place.