Issue with printing PLA

Bambu Lab P Series Troubleshooting
1

I recently purchased a Bambu P1S and had no issues printing until about my 10th print. Since then, any print that has walls started coming out like the photo.

20250813_154606
20250813_1546061920×1081 193 KB

What I’ve tried:

  1. Recalibrating
  2. Installing anti-vibration feet
  3. Factory resetting
  4. Changing the printer’s location (twice)
  5. Using a brand-new spool of Bambu PLA Matte

Setup:
Everything is stock P1S (no upgrades other than the anti-vibration feet). I haven’t changed any slicer settings and I’m using Bambu’s PLA Matte profile in their slicer.

Environment:
Room temperature is around 30 °C with about 60% humidity.

Please help…

2

Are you on Ludicrous mode? This often happens to me when I print pla on Ludicrous

3

This could also be because it’s so humid in your room your filament is getting wet. It might be worth it to get a filament dryer or get an AMS

1 Like
4

Yeah I am on Ludicrous but it used to work fine till my 10th print or so I have no idea…

5

Hmmm, I’ll try getting a filament dryer I guess. Thanks for the suggestions tho

1 Like
6

hope you did get a dryer, that is very much the likely cause, especially at higher speeds you will get more effect of spluttering of wet fillament. as it needs to up the flow to keep up, increasing the temp as well, and increase pressure advance. which just increases that spluttering to happen.

I typically dry and seal into the AMS with copious amounts of dessicant, or print directly from my drybox. after running the dryer for at least 6h on a new spool.

7

Creality Space pi x4 is a good dryer for me. I don’t hook it up to the printer though

8

Okay thanks for more insight

9

Just an update, printing at 100% speed ratherthan 166% fixed everything!