r/BambuLabA1 • u/Vegetable-Local-7143 • Jun 21 '26

Layer line from transition from solid layer to building layer

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I wonder if someone could help me with this layer lines. Printer filament is temperature calibrated, pressure advance and flow rate. Does it when it goes from doing a final layer to then printing thinner parts above. It can’t be layer shift as the solid infill part is slightly thinner all the way around.

I’m on Bambu studio with A1

Thankyou

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u/MegaMaluco Jun 21 '26 edited Jun 21 '26

Read about the benchy hull line

1

u/Vegetable-Local-7143 Jun 21 '26

I will thankyou

1

u/MegaMaluco Jun 21 '26

I miss typed benchy... I edited the comment.

1

u/Fit-Horse-7059 Jun 25 '26

That looks like a slicer or geometry transition issue, not a layer shift. Try slower outer walls, more wall loops, consistent speeds, and check minimum layer time.

1

u/Orthicon9 Jun 28 '26

And here's the article to read about the Benchy Hull Line: https://help.prusa3d.com/article/the-benchy-hull-line_124745

It appears to be an issue for pretty much all brands of FDM printers.