I tried to make a TEC chip dry ice maker. It was hard to manage all the heat the TECs made. I ended up with an elaborate water cooled device with a large coppe

I tried to make a TEC chip dry ice maker. It was hard to manage all the heat the TECs made. I ended up with an elaborate water cooled device with a large copper block acting as a thermal mass interfacing with a TEC tower and 3d printed insulated chambers etc. I got a little bit to freeze, and I could get temperatures close to freezing nitrogen, but eventually my wife made me clean up my huge mess in the dining room.