This is where I am currently up to with the granular HDPE extruder.
The multimeter is reading the resistance from a 10k thermistor while the barrel is warming up. You can also see the roofing insulation thats covering the nickel chromium wire at the end of the barrel.
I haven’t had a chance to get it up to temperature and try extruding just yet as there are many other little problems that need to be solved first.
I also dont think this current setup will work very well, if at all, due to the long thermal gradient over the brass pipe.
Still its a small step in the right direction. When its up and running in some usable way I will post a short description of how it went together.