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Laser Basics
What is a laser cutter?
Short answer
A laser cutter is a computer-controlled machine that uses a focused laser beam to cut or engrave materials with high precision. It directs concentrated light to melt, burn, or vaporize material along a path from your digital design, producing clean edges and fine detail with no physical blade and no contact. CO2 laser cutters handle non-metals like wood, acrylic, leather, paper, and fabric, while fiber lasers cut metal. They are used in signage, manufacturing, prototyping, crafts, and personalization because they are fast, repeatable, and need no tooling changes between jobs.
What a laser cutter is and what it does
A laser cutter turns a digital design into a physical cut or engraving using focused light. With no blade touching the material, it produces clean, precise edges and fine detail without tool wear, and switches designs instantly. The same machine usually cuts all the way through and engraves surfaces.
What a laser cutter is made of
- Laser source (CO2 tube for non-metals, fiber for metals)
- Beam delivery (mirrors + focusing lens, or fiber + optics)
- Computer-controlled motion gantry
- Bed (honeycomb or slats)
- Controller and software (e.g., LightBurn)
- Support systems (exhaust/filtration, air assist, chiller)
What a laser cutter is used for
Signage and displays, awards, packaging and prototypes, personalized gifts and crafts, and industrial parts, tags, and traceability marks — anywhere you need precise, repeatable cuts or permanent marks without custom tooling.
More ways this gets asked
What is a laser cutter?
A laser cutter is a computer-controlled machine that uses a focused laser beam to cut or engrave materials. It melts, burns, or vaporizes material along a path from your design, with no blade and no contact, leaving clean edges and fine detail. CO2 lasers handle non-metals and fiber lasers handle metal.
What is a laser cutter used for / used to make?
It is used for signage, awards, packaging, prototypes, personalized gifts, crafts, and industrial parts and tags. People make everything from acrylic signs and wooden ornaments to leather goods and metal nameplates. Its strength is precise, repeatable work without custom tooling.
What is a laser cutter machine?
It is the machine that performs laser cutting and engraving — a laser source, beam optics, a computer-controlled motion system, a bed, and software working together. “Laser cutter” and “laser cutter machine” refer to the same thing.
What is a laser cutter and how does it work?
It is a machine that cuts and engraves with a focused laser beam. The beam is concentrated by a lens to a point that melts or vaporizes the material, assist gas clears the cut, and a controller moves the head along your design. See our full explanation of how a laser cutter works.
What is a laser cutter made of?
The core parts are a laser source (CO2 tube or fiber), beam-delivery optics (mirrors and a lens, or a fiber), a computer-controlled motion gantry, a support bed, and a controller running software. Most machines add exhaust or filtration, air assist, and a chiller to run safely and consistently.
Related: How does a laser cutter work? · What materials can a laser cutter cut? · CO2 Laser FAQs · Fiber Laser FAQs
Laser Basics
How does a laser cutter work?
Short answer
A laser cutter works by focusing a high-intensity laser beam to a tiny point that melts, burns, or vaporizes the material along a path, while an assist gas blows the molten material and debris out of the cut to leave a clean edge. The beam comes from a laser source — a CO2 gas tube for non-metals, a fiber source for metals — and is steered by mirrors or fiber and focused by a lens, while the head moves under computer control to follow your design. Cutting drives the beam fully through the material; engraving uses less power to mark only the surface. Different materials need different laser types and settings.
The beam: how a laser cutter makes its cut
A laser cutter focuses a beam through a lens to a fine point intense enough to melt, burn, or vaporize the material. Assist gas (air, oxygen, or nitrogen) blows molten material and smoke out of the kerf for a clean edge. A computer-controlled motion system moves the head along the vector path from your design.
CO2 vs. fiber: two ways to cut
A CO2 laser (~10.6 µm) is absorbed by non-metals and cuts wood, acrylic, leather, paper, and fabric. A fiber laser (~1064 nm) is absorbed by metal and cuts steel, stainless, aluminum, and brass. Same mechanism (focused heat + assist gas); different wavelength and source.
Cutting vs. engraving
Cutting uses enough power (often slower feed, stronger assist gas) to drive the beam through so the part separates. Engraving uses lower power and faster motion to mark only the surface. Many jobs engrave first, then cut.
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How does a laser cutter work?
It focuses a laser beam to a fine point that melts, burns, or vaporizes the material, while assist gas blows the debris out of the cut. A computer-controlled motion system moves the beam along your design’s path. Cutting drives the beam through the material; engraving only marks the surface.
How does a CO2 laser cutter work?
A CO2 laser excites a gas-filled tube to produce a ~10.6 µm beam, which mirrors and a lens focus onto the material. That wavelength is absorbed by non-metals, so a CO2 laser cuts and engraves wood, acrylic, leather, glass, and similar materials. Assist air clears smoke and reduces charring.
How does a CNC laser cutter work?
“CNC” just means the machine is computer-controlled, which all modern lasers are. Software converts your design into a tool path, and the controller moves the laser head along it while firing the beam. The cutting itself works the same way — focused light plus assist gas.
How does a laser cutter work on wood?
On wood the focused beam burns and vaporizes a narrow line, and assist air clears smoke and limits charring at the edge. Denser woods and tight grain cut and engrave more evenly. Power and speed are set so the beam either marks the surface (engrave) or cuts all the way through.
How does a laser cutter work, step by step (simple version)?
You send a design to the machine; the controller moves the head along the path; a lens focuses the beam to a point that melts or vaporizes the material; assist gas clears the cut; and the beam passes through so the part separates. For engraving, the same process runs at lower power to mark only the surface.
Related: What is a laser cutter? · How do you use a laser cutter? · CO2 Laser FAQs · Fiber Laser FAQs
Materials
What materials can a laser cutter cut?
Short answer
A CO2 laser cutter cuts and engraves a wide range of non-metals — wood and plywood, acrylic (PMMA), leather, paper and cardboard, fabric and felt, cork, and rubber — while a fiber laser is what you need to cut metal. Glass, stone, and ceramic can be engraved (frosted) but not cleanly cut. Some materials are dangerous and must never be lasered: PVC and vinyl release toxic chlorine gas, and polycarbonate burns instead of cutting. Always match the material to the laser type, and confirm an unknown material before you run it.
What a CO2 laser cuts and engraves
- Wood & plywood (laser-grade plywood best)
- Acrylic (PMMA) — glossy cut edges, bright frosted engraving
- Leather (genuine; avoid PVC-based faux leather)
- Paper, cardstock & cardboard
- Fabric & felt (sealed edges on many textiles)
- Cork, laser-safe stamp rubber, and many plastics (with the right settings + extraction)
What needs a fiber laser (metal)
A CO2 laser does not cut bare metal (only marks coated/anodized metal). Cutting steel, stainless, aluminum, or brass needs a fiber laser (1064 nm). Glass, stone, and ceramic engrave (frost) on CO2 but do not cut cleanly because thermal stress cracks them.
Materials you must never laser
Never laser PVC or vinyl (toxic, corrosive chlorine/HCl gas) or polycarbonate (Lexan, which burns/yellows). Never run an unknown material without identifying it first, including PVC-based faux leather.
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What materials can a laser cutter cut?
A CO2 laser cuts non-metals — wood, acrylic, leather, paper, cardboard, fabric, cork, and many plastics — and engraves glass, stone, and ceramic. A fiber laser cuts metals like steel, stainless, aluminum, and brass. Never cut PVC, vinyl, or polycarbonate.
What can you cut with a laser cutter?
On a CO2 laser: wood and plywood, acrylic, leather, paper and card, fabric, felt, cork, and laser-safe rubber. On a fiber laser: sheet metals. Glass and ceramic engrave rather than cut, and PVC, vinyl, and polycarbonate are off-limits.
What materials can a laser cutter cut through (and how thick)?
Thickness depends on the machine’s power. A strong CO2 laser cuts wood and acrylic up to roughly half an inch or more in a pass, thicker with slower speeds, while thin materials like paper and fabric cut easily. Fiber cutters handle sheet metal whose thickness scales with wattage.
Can a laser cutter cut metal or glass?
Metal needs a fiber laser; a CO2 laser only marks coated metal, not bare. Glass can be engraved (frosted) on a CO2 laser but not cleanly cut, because thermal stress cracks it. See our dedicated guides on cutting metal and why glass won’t cut.
Related: Can a laser cutter cut metal? · Can you cut acrylic? · Why vinyl is never laser-safe · Can you laser engrave plastic?
Buying Guide
How much does a laser cutter or laser engraver cost?
Short answer
Laser prices span a wide range by type and power. Hobby diode engravers run about $300–$4,000 (most beginners spend $500–$1,500); desktop and professional CO2 lasers run roughly $2,000–$20,000+ depending on size and wattage; and industrial fiber metal-cutting systems start around $15,000–$25,000 and climb past $100,000. Running costs are modest — mostly electricity, plus consumables like lenses and, on CO2 machines, an occasional tube. The right spend depends on your material, work size, and volume, not the lowest sticker price. For an exact Boss quote, talk to a specialist.
What a laser cutter or engraver costs by type
- Hobby/diode engravers: ~$300–$4,000 (most beginners $500–$1,500); wood, leather, paper, coated surfaces.
- Desktop & professional CO2 lasers: ~$2,000–$20,000+; wood, acrylic, leather, glass; price climbs with bed size and wattage.
- Fiber markers (metal/plastic ID): a few thousand up to ~$20,000.
- Industrial fiber cutters (sheet metal): ~$15,000–$25,000 entry, past $100,000 for high-power automated systems.
What drives the price
Laser type (diode/CO2/fiber/UV), power/wattage, and work area, then features (autofocus, rotary, camera, chiller, Class-rated enclosure). Build quality, warranty, and support matter as much; cheap imports often cost more in downtime.
What it costs to run
Mostly electricity (modest), consumables (lenses, mirrors, nozzles), and on CO2 machines a tube that eventually needs replacing, plus ventilation/filtration. Cost per part is usually small relative to its sale price.
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How much is a laser engraver / how much does a laser engraver cost?
It ranges from about $300–$4,000 for a hobby diode engraver to $2,000–$20,000+ for a professional CO2 machine. Most beginners spend $500–$1,500, while small businesses investing in speed, work area, and support spend more. Match the machine to your materials and volume rather than buying on price alone.
How much is a laser cutter / how much does a laser cutter cost?
Desktop and professional CO2 cutters generally run $2,000–$20,000+, depending on bed size and wattage. Industrial fiber metal cutters start around $15,000–$25,000 and climb well past $100,000 for high-power automated systems. Diode hobby machines that cut thin materials start a few hundred dollars.
How much is a laser engraving machine?
Anywhere from a few hundred dollars for an entry diode unit to tens of thousands for a professional CO2 or fiber system. Wattage, work area, laser type, and build quality drive the difference. Decide what you’ll make first, then buy the smallest machine that covers it well.
How much does a CNC laser cutter cost?
“CNC” just means computer-controlled, which all modern lasers are, so the ranges are the same: roughly $2,000–$20,000+ for CO2 and $15,000+ for industrial fiber. The price tracks power, work area, and features more than the “CNC” label.
How much does it cost to run a laser cutter or engraver? How much electricity does it use?
Running costs are modest — mainly electricity plus consumables like lenses and, on CO2 machines, a tube. A desktop laser draws on the order of a few household appliances, so power is rarely the limiting cost. Per-part cost is usually small compared with what the part is worth.
How much can you make with a laser engraver?
It depends entirely on your products and pricing, not the machine. Personalized and custom work carries high margins because material is cheap and perceived value is high.
Related: What is the best laser engraver? · How long does laser cutting take? · Metal Cutting FAQs
Laser Software
Is LightBurn good software for laser engraving?
Short answer
Yes — LightBurn is widely considered the best all-around laser software for most users. It combines design layout, photo and image engraving, and machine control in one app, and it supports most machine types: Ruida and other DSP CO2 lasers, GCode/diode engravers, and EZCad galvo fiber and UV markers. It is paid, not free — about $99 (Core, for GCode machines) to $199 (Pro, for DSP and galvo) — with a perpetual license and optional paid yearly updates. Free alternatives like LaserGRBL work but are limited to GRBL/diode machines and lack LightBurn’s photo and layout tools. For most engravers, LightBurn is worth the cost.
Why LightBurn is the go-to laser software
LightBurn does the whole job in one app: design/layout, vector import, photo prep, and machine control. It handles raster engraving with photo dithering and grayscale, vector cutting, camera alignment, and material test grids, and is actively developed. It supports the widest range of hardware: Ruida and other DSP CO2 controllers, GCode/GRBL diode engravers, and EZCad galvo fiber/UV markers.
What LightBurn costs and which version you need
- Core (~$99): GCode machines (most diode/GRBL engravers).
- Pro (~$199): adds DSP and galvo (Ruida CO2 lasers, EZCad fiber/UV).
- Perpetual license; optional ~$40/year for updates.
- Free trial available.
Boss fiber markers also ship with EZCAD; LightBurn is the choice for one consistent workflow across CO2 and fiber.
LightBurn vs. free software
LaserGRBL is free but GRBL/diode-only and Windows-only, without LightBurn’s layout and photo tools. Inkscape is a free design program paired with G-code plugins. For CO2/fiber machines or photo and complex layouts, LightBurn justifies the price.
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Is LightBurn the best software for laser engraving?
For most users, yes. LightBurn combines design, photo engraving, and machine control in one app and supports nearly every machine type, which is why it is the most recommended laser software. The main reason to use something else is budget (a free GRBL tool) or a galvo workflow already built around EZCAD.
Is LightBurn free? What is the best free laser engraving software?
No, LightBurn is paid — about $99 to $199 depending on machine type, with a free trial. The best free options are LaserGRBL (for GRBL/diode engravers, Windows only) and Inkscape for design, but both lack LightBurn’s photo and layout tools.
What software should you use for laser engraving?
LightBurn is the best all-around choice for diode, CO2, and fiber machines. Fiber/galvo markers can also run the included EZCAD software, and budget diode users can start with free LaserGRBL. Pick based on your machine type and whether you need photo and layout features.
How do you laser engrave a photo in LightBurn?
Import the image, set it to grayscale or a dither mode (Jarvis or Stucki work well for photos), then set DPI, power, and speed for your material. Run a small test on scrap to confirm contrast, then frame and engrave. Cast materials and good focus make the biggest difference in photo quality.
How do you use LightBurn for laser engraving?
Select your machine/controller in LightBurn, import or design your artwork, and assign layers — raster for engraving, vector for cutting. Set power, speed, and DPI per layer, frame the job on the bed, then send it to the laser. Save settings as a library for repeat jobs.
Can you run laser engraving software on Windows 10?
Yes. LightBurn runs on Windows 10 and 11, as well as macOS and Linux. LaserGRBL is Windows-only, so if you use a Mac, LightBurn is the better fit.
Can you control laser speed and power live in LightBurn?
Yes. You set speed and power per layer before running, and many DSP controllers let you adjust speed or power overrides at the machine during a job. LightBurn also has a framing and pause workflow so you can check placement before committing.
Related: What is laser engraving? · How do you use a laser cutter? · What is the best laser engraver?
Buying Guide
What is the best laser engraver?
Short answer
There is no single “best” laser engraver — the right one depends on what you’ll make. For wood, acrylic, leather, and glass, a CO2 laser is the best fit; for permanent marks on metal, a fiber laser is the right tool; for fine, low-heat marks on sensitive parts, a UV laser. Beginners and crafters often start with a small CO2 or diode for cost, while small businesses size up to a professional CO2 (like Boss’s LS or HP series) or a fiber marker (FM series) for speed, reliability, and support. Choose by material, work size, throughput, and the support behind the machine — not by the price tag alone.
The best laser engraver depends on your material
- CO2: best for wood, acrylic, leather, glass, paper, most non-metals.
- Fiber: best for permanent metal marks/engraving and high-contrast plastic marking.
- UV: best for fine, low-heat marks on sensitive parts.
- Diode: budget entry for wood, leather, coated surfaces; limited on clear acrylic and bare metal.
Best by user: beginner, home, crafts, business
Beginners/home/crafters: lowest-cost machine that covers their materials (entry CO2 or diode). Small businesses/Etsy sellers: a professional CO2 (Boss LS/HP) or fiber marker (Boss FM Series), where uptime, work area, throughput, and support matter more than the lowest price.
What actually makes an engraver “best”
Build quality, a real warranty, responsive support, and good software (LightBurn for CO2, EZCAD for fiber), plus a Class-rated enclosure and proper exhaust. The best engraver fits your material and still earns its keep years later.
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What is the best laser engraver?
There isn’t one best machine — it depends on your material. CO2 is best for wood, acrylic, leather, and glass; fiber for metal; and UV for fine, low-heat marks. Choose the laser type that matches what you’ll make, then size it to your work area and volume.
What is the best laser engraver for beginners or home use?
Beginners and home users usually want the most affordable machine that covers their materials — an entry-level CO2 or a diode engraver for wood, leather, and coated items. Look for ease of setup, good software support, and a safe enclosure over raw power.
What is the best laser engraver for crafts?
For crafts on wood, acrylic, leather, and glass, a CO2 laser is the most versatile choice, and a desktop model is plenty to start. If you mainly personalize metal items like tumblers or tools, a fiber marker is the better fit.
What is the best laser engraver for a small business or Etsy sellers?
Step up to a professional CO2 (such as Boss’s LS or HP series) or a fiber marker (FM Series) built for daily use. At business volume, uptime, larger work area, throughput, and responsive support matter more than saving a little on the purchase price.
What is the best laser engraver for everything?
No single machine does everything well. A CO2 laser covers most non-metals, but it can’t engrave bare metal; a fiber laser does metal but not wood or clear acrylic the way CO2 does. Many shops run both — a CO2 for non-metals and a fiber for metal — to cover the full range.
What is the best laser engraver under $1000?
Under about $1,000 you’re generally looking at diode engravers, which do a good job on wood, leather, and coated or anodized surfaces. They struggle with clear acrylic and cannot engrave bare metal, so if those matter, plan to step up to a CO2 or fiber machine.
Related: How much does a laser cutter or engraver cost? · What materials can a laser cutter cut? · Find your application
Start from your material
The fastest way to the right machine isn’t a spec sheet — it’s the material in your hands. Wood, acrylic, and leather point to CO2; metal points to fiber. Tell us what you’re making and the application pages route you to the right territory.