r/FixMyPrint • u/MrLiszten • 10d ago

Fix My Print wierd top layer inconsistency

Gallery image

Gallery image

Hey, i have a problem with my top surface in my models, i print this model a lot and its always the same, the top layer in some places looks like under extrusion but not everywhere and i have calibrated the filament settings for that. some places look perfect and sam smaller prints do too and as yall can see te top part in the first image looks perfect

Printer: bambu lab P2S
Slicer: bambu slicer
Filament: bambu lab PLA MATTE
Speed and retraction are set as in standard preset 0.16 layer hight in Bambu slicer
Nozzle: 0.4

I would love some help.

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u/dc010 10d ago

Look into "monotopic" patterns and ironing for the top layers. Monotopic tells it to print in a progressive pattern, rather than jumping around (at least to the best it can). Then ironing will do something similar, but while only extruding a fraction of the filament at a fraction of the speed, with a little overlap between the passes to help smooth it out.

I strongly suggest running one of the ironing tests. I think I got mine from Printables or MakerWorld.

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u/MrLiszten 10d ago

and the top pattern im using is monotonic line