How do I get this filament out?
First you can try pushing it through while turning the extruder. If that doesn’t work you can take the extruder apart to get it out or you can heat it up and push it through using something like a heat gun. If you use the heat gun don’t get it too hot, just enough to move it
How much more does it come apart?
Thanks
All the way down to the gears and individual components. Here’s a handy video:
https://www.youtube.com/watch?v=CLlT1RV-oJE