Materials

Wood

Wood is the maker's entry-level material: cheap, forgiving and satisfying to finish. But “wood” isn't a single category: birch plywood, MDF and solid walnut behave in opposite ways under the same laser or the same router.

How to read the table

Laser — “With limits” almost always means the cut works but blackens the edge or produces fumes that require extraction (typical of MDF, plywood and oily woods). CNC — “Yes” is the rule for wood; the limits concern chipping and tool wear, not feasibility. 3D printing — “No”: wood isn't printed; “wood-fill” filaments are PLA loaded with wood powder, not real wood.

Solid wood: European hardwoods

Hardwoods of medium-fine grain (oak, beech, ash, maple). Good laser-engraving results on the pale ones; in milling they tend to chip if the tool isn't well sharpened. Tannic species like oak blacken the edge more during laser cutting.

Material	Laser	CNC	3D printing	Food safe
Maple	With limitations	Yes	No	Yes
Chestnut	Yes	Yes	No	Yes
European cherry	Yes	Yes	No	Yes
Beech	With limitations	Yes	No	Yes
Ash	With limitations	Yes	No	Yes
American black walnut	With limitations	Yes	No	Yes
European walnut	With limitations	Yes	No	Yes
Elm	With limitations	Yes	No	Yes
Poplar	Yes	Yes	No	Yes
American white oak	With limitations	Yes	No	Yes
European oak	With limitations	Yes	No	Yes
Basswood / Linden	Yes	Yes	No	Yes

Solid wood: tropical and exotic hardwoods

Dense, often oily species (teak, iroko, wenge, mahogany). The natural oils slow down laser cutting and darken the edges, and make gluing harder; in return they offer great stability and durability.

Material	Laser	CNC	3D printing	Food safe
Balsa	Yes	Yes	No	Yes
Laminated bamboo	Yes	Yes	No	No

Solid wood: softwoods (conifers)

Soft, resinous woods (pine, spruce, larch). Fast to cut and mill, but the resin fouls optics and tools, and the knots give irregular edges on the laser. Excellent for prototypes and structures, less so for precision finishes.

Material	Laser	CNC	3D printing	Food safe
Norway Spruce	Yes	Yes	No	Yes
Cedar	Yes	Yes	No	Yes
Douglas fir wood	Yes	Yes	No	Yes
Larch wood	Yes	Yes	No	Yes
Scots Pine	Yes	Yes	No	Yes

Wood-based panels

Engineered panels: plywood, MDF, OSB, particleboard. Laser and milling results depend more on the internal glues than on the species of the outer sheet. MDF and many plywoods release glue fumes when burned: extraction is needed. Rarely food-safe because of the adhesives.

Material	Laser	CNC	3D printing	Food safe
Birch plywood	Yes	Yes	No	Finished only
Marine plywood	Yes	Yes	No	No
Poplar plywood	Yes	Yes	No	Finished only
LVL (Laminated Veneer Lumber)	Yes	Yes	No	No
Exterior MDF	Yes	Yes	No	No
Moisture-resistant MDF	Yes	Yes	No	No
Standard MDF	Yes	Yes	No	No
OSB (Oriented Strand Board)	With limitations	Yes	No	No
Melamine-faced particleboard	With limitations	Yes	No	No
Raw particleboard	With limitations	Yes	No	No

Wood-related non-wood materials

Materials akin to wood in use and working but not woody (cork, bamboo, compressed cellulose derivatives). They cut on the laser with their own parameters and should be assessed case by case rather than by analogy with solid wood.

Material	Laser	CNC	3D printing	Food safe
Cork (sheet/board)	Yes	Yes	No	Yes

Working with Wood: what to know

On the laser the problem isn't cutting wood, it's cutting it without scorching the edge. Pale, low-resin woods (birch, poplar, basswood) give clean edges and engrave with sharp contrast; dense, tannic or oily species (walnut, oak, teak) tend toward blackened edges and more smoke, and often need a paper mask over the surface. A diode laser struggles where a CO2 sails through: above 3-4 mm of thickness the diode needs more passes and leaves darker cuts.

MDF deserves a separate warning. It cuts and engraves beautifully, but the panel is held together by urea-based glues that release irritating fumes when burned: you always need extraction and a ventilated space. The same goes for many plywoods, where the result depends on the glue and the inner plies more than on the species of the outer sheet.

In CNC routing, grain direction and tool sharpness are what count: a dull cutting edge tears the fibres and chips the edge, especially on dense hardwoods and thin plywoods. Compression cutters exist precisely to leave clean edges top and bottom on panels.

Two recurring cautions. On food safety: few woods are safe in contact with food in their raw state, and glued panels almost never are (the glue, not the wood, is the problem); the finish always decides. On moisture: solid wood keeps moving with the seasons, so a piece cut to size in winter can warp or open up in summer if it wasn't seasoned properly.