constantly rotate the plunger and maybe have some impeller flanges on it. this whole resevior assembly, with heaters and vibration etc can be kept separate fro

constantly rotate the plunger and maybe have some impeller flanges on it. this whole resevior assembly, with heaters and vibration etc can be kept separate from the nozzle with a "hot bowden tube"; that'll have to be short but we can reduce the precision moving mass ... maybe the tube can be longer if its warmed or have re-circulation or something.