Fuses came in the mail, and they fixed the problem. Runs like a charm.
I got this metal extruder recently and it is partially put together. I have printed a new extruder it needs and it appears to be functional (i.e. filament can traverse from the extruder into the hotend while cold.)
I need to get the fans working. This video just uses one big fan on the radiator, mounted to two holes in the extruder. I cannot find a file for this extruder with two holes (I can look harder). I could modify my existing files if I need to; I have the brass inserts. Alternatively, this image of the similar new lulzbot extruder has two fans, with one fan mounted on the traditional taz fan mount. I don’t know how the small fan is mounted.
Electronics and Firmware
Upgrading the Taz 4 to a metal hotend has this guide.
This Comprehensive List of TAZ modifications thread doesn’t have an upgrading a Taz3/4 to a hexagon hotend page. I submitted a request for one. It appears to be not-uncommon, so I figure the knowledge is in the forum somewhere, but I’ve haven’t found what I’m looking for in an hour of searching through the forum. I’m piecemealing knowledge from different threads and sources at the moment. A point in the right direction would be appreciated.