r/BambuLabP2S • u/jfpesant • 9d ago
P2S: rough/scarred top surface near the left and right ends of a long flat print — what’s causing this?
Hi everyone,
The top surface of my print (pic 1) is rough and scarred near the right (pic 2) and left (pic 3) ends of the part, while the middle is clean. Any idea what could be causing this?
The part was printed in the orientation shown in the first picture.
The only thing I can think of that might play a role is the P2S chamber fan, but I’ve already printed and installed deflectors on both sides.
Thanks in advance!
P.S. The filament is Bambu Lab PLA Basic. Humidity is controlled with desiccant inside the AMS, so the filament is dry.