Overheating laser

I spent another night running the laser non stop. The water in my tank definitely gets warm not really to the point of overheating but enough for me to question if I should carry on running it. I don't regularly use it this much so there is no point investing in a cool bot or some other chiller, instead I just put the ice packs in the freezer last night and when the tank got warm this evening I dropped them in the water. Simples.

So what have I been cutting, 40 trigger mechanisms, 15 useless machines and 10 arcs, nothing new but keeping me very busy this week. (pics below)