Problems with Bambu PLA Silk

Hello.

The Filament is Bambu Labs Silk PLA, Copper color.
Bambu labs Silk pla settings (and temperature of 230*). I have tried slow down the speed, changed cooling, changed temperature, tried both cold plate and smooth pei plate - but all of the changes makes it worse. I have also made the flow calibration in Bambu studio.

It is only on the bottom, the rest of the print is smooth and perfect.

I hope that someone can help me with what is going on with my print, and what I can do to solve the issue.

Thanks in advance.



It looks like your nozzle is damaged, did you print with any abrasive filaments like glow in the dark PLA? it may also be a humidity issue.

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I am pretty sure that there’s nothing wrong with the nozzle, I have printed with normal pla afterwards with no problems. I only print with basic and matte pla, and now silk pla, no abrasive filaments.

The print is perfect besides the bottom, If it was a humidity problem, wouldn’t it be the entire print that had problems?

Overhang angle too steep. Reduce layer thickness.