Which type of laser cutter is best for wood projects?

For nearly all wood projects, a CO2 laser cutter is the optimal choice. Operating at a 10.6 micrometer wavelength, CO2 lasers are highly absorbed by organic materials like wood, MDF, and plywood. This enables efficient, clean cutting of various thicknesses and produces excellent contrast for engraving. Their versatility in power and speed makes them the industry standard for both hobbyist and professional wood applications.

Diode laser cutters (typically blue light, ~445nm) can engrave wood effectively and cut thinner materials like balsa or 3mm plywood. However, their lower power and less optimal wavelength lead to slower cutting speeds and more charring on thicker wood compared to CO2 lasers. They are a suitable entry-level choice for light engraving or very thin wood.

Fiber laser cutters (around 1064nm) are designed for metals, with their wavelength poorly absorbed by wood. Attempting to use a fiber laser on wood results in ineffective cutting, excessive charring, and burning. Therefore, fiber lasers are entirely unsuitable for wood projects. For the best wood results, a CO2 laser is unequivocally recommended.