Warping no matter what :(

holy ■■■■ ! never expected such an detailed explanation and help. wow.
1st of all, and maybe its the wrong attitude for driving 3d-printers, i bought the x1 carbon back in the days to have a mostly hustle free printing experience, as i barely have spare time, and trying to figure out how i get some prints for my real hobbies done isnt part of it (at least i try to not make it a part of it ^^)
I am printing 99% PLA and i’ve got a textured PEI laying around → i will give it a try

Large print keeps warping at corners. Tried liquid glue and brims - #5 by Rom3oDelta7 is indeed an interesting post.

i realsed the accumulating contamination and i am really cleaning the plates intesivly and i know that the beginning of 3d printing was much more problematic and that i am having a luxury problem.

as i said, i will give the PEI plate + some troubleshooting a good try. if all that fails as well, printing bigger objects i will come back and seriously test it.

i am feeling a bit bad, as you spent so much time into your posting and i am really thankful for that!

p.s. yeah, doing the bed-leveling nearly each time (especially on bigger prints) but i will check for an eneven / warped surfice, just to be sure.

Thank you again!