I have an extremely bad PLA clog in the heatsink of my TAZ 5’s Hexagon hotend (I assume due to heat creep?). In other cases I’ve been able to successfully clear rather nasty clogs by removing the nozzle and using a 2.5mm Allen wrench to push the clog back up, with the hotend at printing temperature. However, in this case the clog seems to be completely stuck: I’ve applied quite a bit of force and it refuses to come out.
I’ve gone so far as to disassemble the hotend, to the point where I have the heatsink with the pipe that goes in it. Using the Allen wrench to measure depths, the clog seems to be about 11mm long, starting about 15mm from the top of the heatsink. This being PLA, submerging it in Acentone will not help at all.
Any ideas how to clear this up? A Dual Extruder v3 is on its way to me but I was hoping to print a few things before Christmas!
I also wonder how unclogging the Dual v3 will work, since the filament path seems to be quite intricate, plus levelling the 2 nozzles after removing/replacing them could be a bit tricky.