When a laser beam hits a mirror, if the mirror is very clean, nearly all of the beam's energy is reflected along one path. However, if debris is present, it can cause the beam to shatter, weakening the beam. A weakened beam not only affects the quality of cutting and engraving, but the mirror heats up and absorbs the infrared energy in the beam. This allows the dirt to embed itself in the surface of the mirror or lens and eventually cause it to crack.
So you can see - keeping mirrors and lenses perfectly clean is critical to maintaining the performance of your laser cutting machine and prolonging the life of your laser mirrors and laser focusing lenses.
Optics should not take more than 2 minutes to clean, we recommend you do this once a week
1. Use an air bulb to blow off any loose contaminants. (dust, lint particles)
2. Squeeze a few drops of acetone onto the lens tissue, wetting the complete optic's diameter. (smudges, fingerprints)
Do not be tempted to use cheaper cleaning solutions as they can leave residues behind. Never use cleaners that contain ammonia on your laser mirrors or laser focus lenses.