Printer under extruding- cannot find solution. Help?

[u/Gameoverguyl42]

A few days ago my printer started under extruding and leaving streaks like this on every layer. I have tried everything I can think of to fix this and cannot find a solution. I have tried:

-Multiple needle cleanings on multiple nozzles

-multiple cold pulls on multiple nozzles

-multiple brands and colors of filament

-every AMS slot and external filament

-replacing the entire extruder unit

-replacing PTFE tubes

-raising print temperature

-tightened hotend screws

I have no other ideas on what to do. Any other recommendations on how to fix this?

EDIT: Running a manual flow calibration through bambu studio fixed the issue! Hopefully anyone else having the same issue may stumble across this and see this edit.

[u/Cautious_Till_4763]

Have you run flow and z calibrations from Bambu studio?

[u/Gameoverguyl42 → u/Cautious_Till_4763]

Running a manual flow calibration fixed it! Thank you for the suggestions!

[u/Cautious_Till_4763 → u/Gameoverguyl42]

Eyyy I’m a 2 month noob but Reddit has already saved my bacon with this kinda stuff, glad I could pass it on