What do I need to know before I start laser engraving and cutting?

• Don’t assume you can cut or engrave everything. Make sure you know the wattage of your laser and the capabilities it has. Also, some materials, such as PVC, release toxic fumes and hydrochloric acid when processed with a laser.
• Keep a clean environment. Some of the problem calls we answer are due to dirty mirrors, nozzles, and air quality, or worst-case scenario, a fire. Your laser system is an industrial machine; however, the laser needs a clean environment to work at its best potential.
• Metal cutting: Don’t think all metals cut the same. Aluminum and copper are very reflective. This could cause flashback and damage your protective lens, your lens mirrors, and worst-case scenario, the laser itself.

—Kern Laser Systems