Leather is one of the most rewarding materials to work with on a laser cutter. Custom wallets, belts, keychains, and accessories with laser-engraved personalization sell well and are genuinely satisfying to make. Here's how to get great results safely.
This is the most important thing to get right before you start. Most genuine leather and PU (polyurethane) faux leather are safe to laser cut and engrave. PVC-based synthetic leather is not — it releases chlorine gas when burned, which is toxic and corrosive to your machine.
Genuine vegetable-tanned leather produces the best engraving results — deep, dark, high-contrast marks. Chrome-tanned leather also works well. Suede and nubuck engrave but the results are less defined. Always source from a known supplier and confirm the material is PVC-free.
Leather responds well to diode lasers. The material absorbs the 450nm wavelength effectively, and the results are consistently good across diode power levels. Engraving is the strongest use case — cutting requires multiple passes but produces clean results.
| Material | Thickness | Mode | Power (10W) | Speed (mm/min) | Passes |
|---|---|---|---|---|---|
| Genuine leather (veg tan) | 2mm | Engrave | 30% | 3000 | 1 |
| Genuine leather (veg tan) | 2mm | Cut | 72% | 300 | 2 |
| Genuine leather (chrome tan) | 2mm | Engrave | 35% | 3000 | 1 |
| Faux leather (PU) | 1mm | Engrave | 22% | 3500 | 1 |
| Faux leather (PU) | 1mm | Cut | 60% | 400 | 1–2 |
CO2 lasers produce outstanding results on leather. The 10.6 micron wavelength is absorbed very efficiently, allowing faster engraving speeds and cleaner cuts with less heat buildup in surrounding material.
| Material | Thickness | Mode | Power (40W CO2) | Speed (mm/s) | Passes |
|---|---|---|---|---|---|
| Genuine leather | 2mm | Engrave | 20% | 300 | 1 |
| Genuine leather | 2mm | Cut | 40% | 20 | 1 |
| Genuine leather | 4mm | Cut | 55% | 12 | 1–2 |
Leather tends to curl when cut, especially thinner pieces. Pin it down flat on your work bed before cutting. A honeycomb bed with hold-down pins works well, or use double-sided tape for smaller pieces.
For engraving, dampening the leather slightly before engraving can deepen the mark and reduce burning on the surface. This technique works best on vegetable-tanned leather.
Always ventilate well when cutting leather. The smell is not toxic at typical hobbyist volumes but it is pungent and will linger. An activated carbon filter significantly reduces the odor.
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