Random Zits and Pockmarks on Walls

Document the failure and confirm that it matches this guide: Small bumps or pits appear at scattered locations rather than one seam line.

Return extreme overrides to a known printer, nozzle, material, and slicer profile so the diagnosis starts from a stable baseline.

Check wet filament. Dry the filament.

Check power-loss recovery pauses. Disable optional pause-heavy features for a test.

Inspect retraction/pressure mismatch. Tune pressure/retraction.

Rule out mesh or file complexity. Compare a simplified test model.

Change only the single setting or hardware condition supported by the evidence, then run a small test that reproduces the original failure.

Compare the test against the target condition, record the successful value, and save it in a printer/material profile before repeating the full print.