Hey! I've been following the Tantillus ever since the first post and I'm thrilled its finally released! I noticed that there are plans for a copper hot end, and I wanted to mention that I've designed a hot end that is j-head compatible, but easier to machine (two ops on a CNC mill) and better looking than a J-head (no raw bar stock). I've made the prototypes out of solid copper and I've been sloby tlalexander - Tantillus