Beginner's Guide to Buying a Laser Engraver
Choosing your first machine feels overwhelming because most of what you read is marketing. This breaks the decision into the six things that actually matter — laser type, power, bed size, safety, software and budget — so you buy the right machine once instead of the cheap one twice.
Step 1Pick the laser type first
Everything else follows from this. There are three types you'll realistically consider, and they're not interchangeable — the wavelength decides what materials the beam will actually mark.
| Type | Best for | Struggles with | Typical power |
|---|---|---|---|
| Diode | Wood, leather, dark acrylic, paper, slate | Clear acrylic, bare metal, glass | 5–20 W optical |
| CO2 | Wood, acrylic (incl. clear), glass, leather, rubber | Bare metal | 30–150 W |
| Fibre | Bare metals — steel, brass, aluminium, titanium | Wood, acrylic (not for cutting) | 20–100 W |
Step 2Decide how much power you need
More power means faster engraving and deeper cuts — not "better" engraving. Match it to the work, not to the spec sheet.
- Under 10 W diode — engraving and light cutting of thin ply, card and leather.
- 10–20 W diode — cuts 3–10 mm wood, the practical hobby sweet spot.
- 40–60 W CO2 — cuts wood, acrylic and leather with ease.
- 80 W+ CO2 — production speeds and thicker stock.
Step 3Match the bed size to your biggest job
Think about the largest thing you'll ever want to make, then add a margin.
- Small (≈200×200 mm) — keyrings, coasters, small signs.
- Medium (300×400 to 400×600 mm) — signs, boxes, wall art.
- Large (600×900 mm+) — furniture parts, big signage, production runs.
Many frames offer a pass-through slot so you can engrave long items in sections — handy if you occasionally need length but not width.
Step 4Don't compromise on safety features
These are Class 4 devices. Treat the safety kit as part of the machine cost, not an optional extra — read the safety section before you buy.
- Wavelength-rated eye protection (the goggles bundled with cheap diodes are often not enough).
- An enclosure with extraction, or a plan to duct fumes outside.
- Emergency stop, and flame/tilt detection on enclosed machines.
- A fire extinguisher within reach — and never leaving a running job unattended.
Step 5Check the software before you pay
Your machine needs a controller your software supports.
| Software | Cost | Works with |
|---|---|---|
| LightBurn | Paid | Most diode and CO2 lasers — the one to own |
| LaserGRBL | Free | GRBL diode lasers, Windows only |
| RDWorks | Free | Ruida CO2 controllers (clunky) |
Step 6Budget realistically (UK)
| Type | Entry | Mid-range |
|---|---|---|
| Diode | £200–£400 | £400–£800 (10 W+) |
| CO2 | £400–£800 (40 W) | £1,000–£2,500+ |
| Fibre | £2,000+ | £3,000–£6,000+ |
Budget for accessories too: air assist, a honeycomb bed, extraction, and spare lenses. See what we actually use on the hardware page.
Which oneQuick scenarios
| You are… | Buy | Why |
|---|---|---|
| Learning at home | 5–10 W diode | Affordable, safe-ish, versatile |
| Selling wood & slate gifts | 10 W+ diode or 50 W CO2 | Faster engraving, real cutting |
| Personalising metal & tumblers | Fibre, or diode + marking spray | Fibre for bare metal; spray is the budget route |
| Running small production | 60 W+ CO2 with LightBurn | Speed and material flexibility |
FAQCommon questions
No — the beam passes straight through it. Paint the surface first, use cast acrylic in a dark colour, or use a CO2.
For cutting, yes. It clears the beam path and cuts down charring and flare-ups. For light engraving it's optional but still helps.
Almost never. That's usually input or module power. Real optical output is typically 5–10 W. Buy on optical output only.
MistakesWhat to avoid
- Buying on advertised wattage instead of optical output.
- Grabbing the cheapest machine from an unknown seller with no support.
- Skipping extraction and goggles to save money on day one.
- Buying big before you know what you actually make.
⤴ Next step
Whatever you buy, your first job should be a material test grid — ten minutes of scrap that makes every setting on this site work for your machine. Then browse the materials guides to see what yours can do.