This article discusses the importance of maintaining clean optics in laser engravers, specifically mirrors and focus lenses, to ensure optimal performance. It explains how airborne particles, smoke, and debris from the laser cutting process can contaminate mirrors and lenses, leading to reduced efficiency, potential overheating, and permanent damage.

The article provides step-by-step instructions for cleaning the mirrors and lenses using isopropyl alcohol, proper tools, and techniques. It emphasizes regular cleaning and inspection to extend the lifespan of the equipment and maintain high-quality results.