I finally got around to making a couple heater cores from makergear. Amazingly its not because my old one failed. One of these will be used for the new Mendel thats mostly complete. The mechanical part is all together so now I only have to work on the hot end. I printed up a wade extruder, the one modified for the makerbot but unfortunately one of the holes was off and I didnt use enough solidity ratio so I kinda already broke it. So until I get the energy to print up a new one I figured Id get the hot end ready.