Laser settings for genuine leather: cut and engrave guide
Leather is one of the best materials for laser work. It cuts cleanly, engraves with beautiful contrast, and the laser seals the edge as it cuts — no fraying. The results look professional with minimal post-processing.
One important safety note before anything else: never laser cut or engrave chrome-tanned leather. Chrome tanning uses chromium compounds that produce toxic hexavalent chromium fumes when burned. Use vegetable-tanned (veg-tan) leather for laser work. Veg-tan leather engraves and cuts without hazardous fumes (though you still need ventilation).
How to identify veg-tan vs chrome-tan leather
Veg-tan leather is firm, stiff when dry, and has a natural tan or light brown colour. It takes water marks and tool impressions easily. Chrome-tan leather is softer, more flexible, and often has an even, uniform colour. Most coloured or dyed fashion leather is chrome-tanned. If you are not sure, buy from a supplier that explicitly labels it as veg-tan for laser use.
Cut settings for veg-tan leather
| Machine | Thickness | Speed | Power | Passes | Notes |
|---|---|---|---|---|---|
| xTool D1 Pro 20W | 2mm | 3000 mm/min | 75% | 1 | Air assist on |
| xTool D1 Pro 20W | 3mm | 2000 mm/min | 85% | 2 | |
| xTool S1 40W | 2mm | 5000 mm/min | 55% | 1 | Air assist on |
| xTool S1 40W | 3mm | 3500 mm/min | 65% | 1 | |
| Sculpfun S30 Pro 33W | 2mm | 4500 mm/min | 60% | 1 | Air assist recommended |
| Sculpfun S30 Pro 33W | 3mm | 3000 mm/min | 72% | 2 | |
| OMTech 40W CO2 | 2mm | 35 mm/s | 40% | 1 | CO2 cuts leather very cleanly |
| OMTech 40W CO2 | 3mm | 22 mm/s | 52% | 1 | Single pass at correct speed |
| Glowforge Basic 40W | 2mm | 32 mm/s | 42% | 1 | |
| Glowforge Pro 45W | 3mm | 26 mm/s | 50% | 1 |
Engrave settings for veg-tan leather
| Machine | Speed | Power | DPI | Notes |
|---|---|---|---|---|
| xTool D1 Pro 20W | 5000 mm/min | 60% | 254 | Rich dark brown mark |
| xTool S1 40W | 7500 mm/min | 42% | 254 | |
| Sculpfun S30 Pro 33W | 7000 mm/min | 45% | 254 | |
| OMTech 40W CO2 | 250 mm/s | 18% | 300 | |
| Glowforge Basic 40W | 240 mm/s | 20% | 300 | |
| Glowforge Pro 45W | 270 mm/s | 17% | 300 |
Getting clean cut edges
The laser seals leather edges as it cuts, which prevents fraying. For the cleanest results, use air assist and keep the leather flat on the bed — leather tends to curl, especially thinner pieces. Pin or tape the corners before cutting.
If you are cutting small pieces like keychains or earrings, a jig helps you position identical pieces consistently for batch production. Cut a pocket in a piece of scrap material that fits your leather blank snugly, then place each blank in the jig for cutting and engraving.
Engrave depth and contrast
Veg-tan leather engraves with a dark brown to black mark depending on depth. More power and slower speed produce a deeper, darker mark. For most applications — names, logos, monograms — a single medium-power pass gives excellent results.
After engraving, you can apply a leather conditioner or beeswax to the piece. Conditioning darkens the un-engraved areas slightly while the engraved marks stay dark, increasing the contrast. Saddle soap or leather oil both work well.
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