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.
As the print builds upward from the bottom, the surface comes out smooth.
However, the real problem is that the support contact area and both sides are not coming out smooth.
How can I fix this?
Could it be an issue with the Bambu PLA Silk+ filament?
Other filaments print fine, but only this mint colored filament has the problem.
If anyone knows what’s causing this, please let me know. 
Interesting, are you saying only Mint Silk+ has this problem and the other Silk+ colors are OK? That’s entirely possible, but just to make sure is there any chance you are printing more than one at a time and the location of the mint heart is positioned differently relative to the AUX fan?
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Thank you for your reply!
The only Silk+ filament I have is the Bambu Silk+ in mint, and I have three other brand Silk filaments. It seems like the settings for Silk+ and Silk are quite different.
Since the print quality hasn’t been great, I’ve been printing one at a time and always placing it in the center of the bed.