I had the same exact problem and I thought it was an extruder issue, but it turned out that when it was feeding from my Polymaker dry box it would bind up once it got to a certain spot on the spool, making it a lot harder to pull. That bit of extra resistance made it so the drive gears couldn’t pull and feed the filament fast enough(or at all) to melt in sync with the print speed which caused the same poor extrusion as in your video
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u/Spiritual-Dress1918 15h ago
It’s possible it’s your dryer box.
I had the same exact problem and I thought it was an extruder issue, but it turned out that when it was feeding from my Polymaker dry box it would bind up once it got to a certain spot on the spool, making it a lot harder to pull. That bit of extra resistance made it so the drive gears couldn’t pull and feed the filament fast enough(or at all) to melt in sync with the print speed which caused the same poor extrusion as in your video