The location where I am currently running the machine is not at a stable temperature (and air conditioning the place is not economical), whilst not hot it can get pretty warm during summer afternoons and the fans scream during long run cutting jobs. Has anyone done any after market cooling for the laser tube in one of these machines? I'm thinking that attaching a small cooling unit in serial in front of the fans may be one way to do it but would be very interested if anyone had done any kind of water cooling.