Feed Jam
I tried flexible filament for the first time. Just don't if you're thinking about it.
Print jammed. I can fish a guitar string completely through the feed path but cannot extract the filament. It seems jammed above the hot zone. Filament stretches a lot then snaps off outside the feed path. I'm hoping for a better solution than "take the whole hot end apart." Any suggestions?
RE: Feed Jam
Flexible works fine in the Mk3 ... the early Mk3S however, not so well.
You can try removing the nozzle, then push from the top to force the plastic out the nozzle end. This usually works well. It also works for certain jams in the heat break, and you can push the filament upwards back through the PTFE and pluck it out from the open extruder door.
If the nozzle removal technique fails, a full disassembly is in your future.