How to Build a DIY laser cutter gas containment chamber

If you are the proud owner of a laser cutter, you had better be careful with your expensive new toy. Some materials can damage the optics in your laser or produce poisonous gas when you cut them, so you need to make a gas containment chamber to work in. Watch this video to find out how to do that out of silicon wafer, silicone sealant, and a metal cookie tin lid.