This page lists 29 community-tested settings for 3mm MDF. Wood is one of the most popular laser engraving materials. Results vary by species, thickness, and grain — always run a test first.
MDF cuts cleanly with 10W + air assist in 3 passes. Multiple faster passes give cleaner edges than 1 slow pass. Heavy fumes — ventilate well. Air assist is critical for MDF.
33W cuts 3mm MDF cleanly in one pass with air assist. MDF produces heavy fumes — ventilate well. Air assist critical to prevent flare-up and keep lens clean. Multiple fast passes are an alternative for cleaner edges on thicker MDF (8mm: 2 passes).
MDF cuts consistently (no voids like plywood). 2 passes at moderate speed gives cleaner edge than 1 slow pass. Heavy fumes — ventilate well. Air assist critical. Stock K40 tube output varies; tune power up/down by 5% if edges are tacky or over-charred.
Smooth uniform density — good for signs and plaques. Consistent material means predictable results. Slightly higher power than basswood needed. Dynamic power mode.
Community-tested: 200mm/min, 80%, 4 passes gives clean result in ~1.5h. Alternatively: 600mm/min, 70%, 10 passes for less charring in ~1.2h. Air assist upgrade cuts passes by ~1/3. MDF produces heavy fumes — ventilate well.
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