0.1 FAILURE_PATTERN

ASA adhesion failures usually show up as corner lift in the first 10 to 30 layers, then progress into wall splitting or full detachment. If your first layer looks acceptable but the part still peels later, your enclosure thermal behavior is likely unstable rather than your nozzle offset being wrong.

Before changing slicer settings aggressively, run one short diagnostic print with a large-footprint shape and observe exactly when lift starts. If lift starts immediately, prioritize bed prep and Z offset. If it starts after several layers, prioritize enclosure heat retention and fan behavior.

> FIG 01: First-layer path quality. Watch for under-squished lines and gaps between adjacent tracks.

> FIG 01B: Enclosure stability check. Drafts and rapid ambient changes can trigger delayed corner lift.

0.2 CORRECTIVE_SEQUENCE

Use a fixed order so you can isolate cause and effect. First, clean the build plate with dish soap and warm water, dry with lint-free cloth, and avoid touching the print area. Second, verify first-layer squish by reducing Z offset in tiny increments until lines fuse with slight edge flattening and no nozzle dragging.

Third, increase bed temperature in small steps and keep chamber conditions stable. For ASA, disabling part cooling on early layers and using a brim can dramatically reduce edge stress while the base is still weak. Change one variable at a time and reprint the same test part so results are comparable.

> FIG 02: Build plate prep matters more than slicer tweaks when adhesion fails in layer one.

0.3 BASELINE_PROFILE

A strong baseline for ASA is moderate first-layer speed, generous bed heat, low to zero early cooling, and an enclosure that is warm but not overheating electronics. Start conservative, validate adhesion, then optimize cycle time only after you can complete multiple identical prints without lift.

When your process is stable, save the profile as a locked baseline and branch from it for geometry-specific jobs. This keeps troubleshooting fast because you can always return to a known-good configuration instead of re-tuning from scratch.