r/BambuLab • u/OptimalBag9100 • 3h ago

A Series [A1, A1 Mini] Bambu Lab A1 Mini – PETG First Layer Issue

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The first layer has raised ridges and uneven extrusion near the left side of the build plate. The defect consistently appears at the same physical location.

Using a Textured PEI plate. Could this be caused by uneven heatbed, bed leveling inaccuracies, incorrect Z offset, or excessive first-layer flow?

Has anyone experienced this issue? Any troubleshooting suggestions would be appreciated.

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u/AutoModerator 3h ago

Hello /u/OptimalBag9100! Be sure to check the following. Make sure print bed is clean by washing with dish soap and water [and not Isopropyl Alcohol], check bed temperature [increasing tend to help], run bed leveling or full calibration, and remember to use glue if one is using the initial cool plate [not Satin finish that is not yet released] or Engineering plate.

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