The Correct Optics
Wood laser cutting is a sublimation process. Precise focusing and the right optics are therefore crucial for high-quality results. A distinction must be made between engraving and / or cutting. When engraving, pay close attention to the following: the finer the details, the shorter the focal length of the lens should be! 1.5" or 2" lenses are usually suitable for any wooden laser engraving. But, the situation is different for cutting. The thickness of the material plays a very important role here. The thicker the material, the longer the focal length should be. For 1/8" thick wood, we suggest using a 2" lens, for 1/4" thick, we suggest a 2.5" lens.
How to Make the Right Lens Choice