Persistent Elephant's Foot on P2S - Transitioning from A1

Hi everyone,

I recently upgraded from an A1 to the new P2S, and while the machine is a beast, I’m struggling to eliminate a persistent elephant’s foot issue (as seen in the photo).

I was hoping the P2S’s improved thermal management would mitigate this, but I’m still seeing that expansion in the first few layers.

Current Setup:

  • Printer: Bambu Lab P2S

  • Filament: PLA

  • Slicer: Bambu Studio (latest version)

  • Settings: Default P2S Profile

  • Adhesion: Using a 6mm brim and BIQU frostbite

Even with the 6mm brim, the base expansion is still there. Since the P2S handles chamber airflow differently than the A1/P1 series, I’m wondering if I should manually tweak the “Elephant foot compensation” or if there’s a specific trick with the new ventilation system for PLA.

Should I lower the bed temperature after the first layer, or is there a specific flow calibration for the DynaSense extruder that you guys recommend for this?

Thanks in advance for the help!

If you are referring to this bulge:

image

That’s not elephant foot.