Bad layers/ missing chunks
I am printing PLA on a dual-head Prusa XL, but I am experiencing issues with layer consistency.
I have tried multiple slicer settings, replaced the nozzle, lubricated the shafts and lead screws, and checked the belt tension.
Despite this, I am still seeing small gaps or missing chunks in the layers of my prints.
RE: Bad layers/ missing chunks
What PLA do you print with?Age? Manufacturer?
That looks like wet filament - how are you drying it?
Cheerio,
RE: Bad layers/ missing chunks
The filament is from 123-3D:
https://www.123-3d.nl/123-3D-Filament-PLA-Donkerblauw-1-75-mm-1-kg-i11625.html
This is a new roll.
I opened it on January 22, 2026.
I also dried it in the Polymaker PolyDryer.
Check your dryer is working correctly - you cannot be certain a new roll is dry.
Cheerio,
RE:
Are you using a random seam?
How high is the retraction distance and retraction speed?