Intermittent underextrusion
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I have an Ender 3 and after printing a few things in PETG, I have tried to print in PLA with no success. I have:
cleaned nozzles
replaced nozzles
increased temps
decreased temps
rebuilt hot end
added direct extruder
changed PTFE tubes
leveled bed
releveled bed
said bad words
threatened the printer with unpleasantness
prayed
more bad words
apologized to printer
begged it to work
eSun cleaning filament
It seems to start fine (sometimes) and then I'll check after a few minutes and it is doing that clicking thing where the filament is not feeding, or on the rare occasion that it does finish a print, it is spongy and crap.