Bambu P1S PLA Silk+ Filament Issue

[Hyoooni]

Using Bambu Lab P1S
Filament: Bambu Lab PLA Silk+ in mint color
Filament dryer used for 12 hours
The model is apple-shaped and printing starts from the bottom of the apple.
The bottom is where the supports contact the model — as the print builds upward from there, the surface comes out smooth.

However, the problem is that the very first layers at the bottom (where printing begins) are not smooth and the print quality there is poor.
I’ve been asking on communities and adjusting settings based on the advice I received, and things have been gradually improving — but the issue isn’t completely resolved yet, which is frustrating.

The last photo is my most recent print, and you can see it has improved somewhat.
What would it take to completely fix this problem?

[techie]

did you use supports? if not do then maybe use manual supports

[techie]

or you could try ironing on every layer if you have enough time

[Hyoooni]

I printed it with supports added to the bottom and the back!​​​​​​​​​​​​​​​​

[EnoTheThracian]

You probably need an AMS to make this better. Or split the part into two halves and glue after printing.

A single material print usually has a seperation distance between the part and the support. To avoid sagging, this would need to be eliminated. But the support would be fuzed to the modell…
Using a different material for the support interface (PETG for PLA) allows you to make a flush support interface that is easy to remove.
But check the flush volumes before printing. You’ll want to be well above 800.

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