This is just a heads up about the laser cutter. PLEASE make sure the chiller is operating/on when you are using the laser. IF you do not know what the chiller is you SHOULD NOT be using the laser cutter. I found the chiller unplugged due to something laying on the power cord causing it to become detached. If we are not vigilant in the start up step of the laser sudoroom will not have one due to operator error. Not wanting to be a castigator just wanting people to know that stupid things like a badly placed object can be the end of great equipment.