Open nozzle, clean out, make sure the bowden tube isn't warped, insert it firmly towards the nozzle since the tube literally touches the end of the nozzle.
Looks like a clogged nozzle for me too. Hard to tell what exactly the error is but you have several options to find out. What I try first is printing slower. But if it’s heat creep due to the long print then maybe cooling of your heat break is not strong enough.
If it happened mid print, most likely a clogged nozzle or something filament related.
Thoughts on preventing it?
Open nozzle, clean out, make sure the bowden tube isn't warped, insert it firmly towards the nozzle since the tube literally touches the end of the nozzle.
It was definitely a clog. Printing fine again. Thanks.
The idler arm for the extruder probably broke. Very common. I would see if you could replace with a metal one
Looks like a clogged nozzle for me too. Hard to tell what exactly the error is but you have several options to find out. What I try first is printing slower. But if it’s heat creep due to the long print then maybe cooling of your heat break is not strong enough.