Minimum Feature Size: How Small Can a Laser Cut?

Three things: the laser's kerf (you can't cut a feature thinner than the kerf), the material's structural integrity at that size (fragile webs tear), and the thermal damage zone (small features absorb heat from neighboring cuts and over-burn).

Wood: 1 mm. Acrylic: 1 mm. MDF: 1 mm. Paper/cardstock: 0.5 mm. Mylar: 0.4 mm. Metal: 1.5 mm. These are the defaults Lazrit enforces and what most maker community guidance settles on.

The topology engine measures the gap between adjacent paths. When that gap drops below the material's minimum-detail threshold, you get a warning before export. You can ignore the warning and proceed — it's a recommendation, not a hard stop.

Three options: enlarge the design, simplify the fragile detail (remove the thinnest features), or accept that the cut will be fragile and handle it carefully. Lazrit's UI shows the specific paths and gaps that are flagged so you know exactly what to fix.