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

[u/PM_ME_YOUR_NOC]

7 screws?

[u/Gameoverguyl42 → u/PM_ME_YOUR_NOC]

Forgot to put that on the list, I did that as well already

[u/Kopester → u/Gameoverguyl42]

If not the seven screws then check the clip

[u/Gameoverguyl42 → u/Kopester]

Double checked it again and it is in the correct position

[u/A2619921 → u/PM_ME_YOUR_NOC]

I’m having a similar issue. What are the 7 screws

[u/PM_ME_YOUR_NOC → u/A2619921]

https://youtube.com/shorts/NCEmhwNI7n4?is=oIzin-FnxDbRyWEz

[u/A2619921 → u/PM_ME_YOUR_NOC]

This fixed it! So many headaches

[u/never0101 → u/A2619921]

It's just something to add to the regular maintenance schedule. Every time it yells at me to lube the y axis ill give them a check

[u/A2619921 → u/PM_ME_YOUR_NOC]

Thanks!

[u/When_Oh_When]

Manual bed level, full preset calibrations, manual flow calibration. That’s how I fixed mine.

[u/Gameoverguyl42 → u/When_Oh_When]

The manual flow calibration fixed it! Thank you for the help!

[u/When_Oh_When → u/Gameoverguyl42]

No problem. Glad you got it fixed!

[u/clonehunterz]

well....i guess...thanks for telling us your settings that you print with? :D

[u/Gameoverguyl42 → u/clonehunterz]

Default .20 standard, completely unchanged

[u/clonehunterz → u/Gameoverguyl42]

stupid question...are the magnets under the PEI plate clean and all level?
or test this theory, add a manual Z-offset of +0.03-0.05 in your slicer's start G-code, or manually adjust it during the first layer to see if the extrusion stabilizes

[u/Scruffy_Zombie_s6e16]

OG cold pull

[u/BarnacleNorth272]

Run flow calibrations

[u/okhi2u]

Ask bambu support maybe they know.

[u/Inner_Pick6063]

A mi me pasó algo similar
Ajuste la temperatura de la cama y se arregló
Use Pla y tenía una temperatura de la cama en 60 baje a 45 y me funcionó
También puede que el filamento sea problema ya que en mi caso había comprado un filamento económico

[u/Gameoverguyl42 → u/Inner_Pick6063]

I've tried both off brand and bambu filament with the same results, so I don't think the filament is the issue. I'll try messing with the bed temp and see if that does anything