data/seed_lessons.jsonl

{"job_id": "seed-001", "material": "PLA", "geometry_type": "stringing", "env_temp": 22.0, "env_humidity": 45.0, "outcome": "failed_stringing", "lesson": "PLA strung at 215C in moderate humidity. Dropping nozzle to ~200C and nudging retraction up cleared it. With PLA, temperature is usually the bigger lever than retraction distance.", "source": "seed", "timestamp": "2026-05-20T10:00:00Z"}
{"job_id": "seed-002", "material": "PLA", "geometry_type": "stringing", "env_temp": 24.0, "env_humidity": 70.0, "outcome": "failed_stringing", "lesson": "High ambient humidity made PLA string even at a sane 205C. Settings tweaks did little; the real fix was drying the filament. Above ~60% humidity, suspect moisture before chasing retraction.", "source": "seed", "timestamp": "2026-05-20T10:05:00Z"}
{"job_id": "seed-003", "material": "PLA", "geometry_type": "overhang", "env_temp": 23.0, "env_humidity": 40.0, "outcome": "success", "lesson": "Steep PLA overhang printed clean with cooling fan at 100%. PLA likes maximum cooling on overhangs to freeze the layer before it droops.", "source": "seed", "timestamp": "2026-05-20T10:10:00Z"}
{"job_id": "seed-004", "material": "PLA", "geometry_type": "overhang", "env_temp": 28.0, "env_humidity": 50.0, "outcome": "failed_sag", "lesson": "PLA overhang sagged in a warm room even at full fan. Warm ambient air weakens part cooling; on hot days drop a few degrees and ensure unobstructed airflow, or add support past ~50 degrees of overhang.", "source": "seed", "timestamp": "2026-05-20T10:15:00Z"}
{"job_id": "seed-005", "material": "PLA", "geometry_type": "bridge", "env_temp": 22.0, "env_humidity": 42.0, "outcome": "success", "lesson": "Short PLA bridge under ~50mm printed flat with full cooling and slightly increased bridge flow. Max fan plus brisk bridge speed is the reliable combo for PLA spans.", "source": "seed", "timestamp": "2026-05-20T10:20:00Z"}
{"job_id": "seed-006", "material": "PLA", "geometry_type": "adhesion", "env_temp": 19.0, "env_humidity": 38.0, "outcome": "failed_sag", "lesson": "First layer wouldn't stick in a cold room. Bumping bed to ~60C, slowing the first layer, and turning the fan off for the opening layers fixed adhesion. Cold ambient hurts first-layer bonding most.", "source": "seed", "timestamp": "2026-05-20T10:25:00Z"}
{"job_id": "seed-007", "material": "PETG", "geometry_type": "stringing", "env_temp": 23.0, "env_humidity": 48.0, "outcome": "failed_stringing", "lesson": "PETG strung badly at 245C. Lowering to ~232C, raising travel speed, and enabling wipe-before-travel cleaned it up. PETG strings more than PLA by nature, so live at the low end of its temp range.", "source": "seed", "timestamp": "2026-05-20T10:30:00Z"}
{"job_id": "seed-008", "material": "PETG", "geometry_type": "stringing", "env_temp": 25.0, "env_humidity": 65.0, "outcome": "failed_stringing", "lesson": "PETG is hygroscopic and strung heavily in humid air despite good settings. Drying the spool was the only durable fix. Above ~60% humidity, dry PETG first and treat settings as secondary.", "source": "seed", "timestamp": "2026-05-20T10:35:00Z"}
{"job_id": "seed-009", "material": "PETG", "geometry_type": "overhang", "env_temp": 23.0, "env_humidity": 45.0, "outcome": "failed_sag", "lesson": "PETG overhang drooped when I ran the fan low for strength. PETG needs a cooling compromise: ~30-50% fan generally, bumped to 60-70% specifically over overhangs and bridges.", "source": "seed", "timestamp": "2026-05-20T10:40:00Z"}
{"job_id": "seed-010", "material": "PETG", "geometry_type": "adhesion", "env_temp": 22.0, "env_humidity": 47.0, "outcome": "failed_sag", "lesson": "PETG layers came out brittle with the fan too high. Dropping cooling to ~30% and raising temp 5C restored layer bonding. Over-cooling PETG causes delamination; it is the opposite of PLA.", "source": "seed", "timestamp": "2026-05-20T10:45:00Z"}
{"job_id": "seed-011", "material": "PETG", "geometry_type": "bridge", "env_temp": 24.0, "env_humidity": 44.0, "outcome": "success", "lesson": "PETG bridge held by temporarily raising fan to ~70% for the span only, then returning to 40%. Targeted cooling bursts beat globally high fan, which would weaken the rest of the part.", "source": "seed", "timestamp": "2026-05-20T10:50:00Z"}
{"job_id": "seed-012", "material": "PETG", "geometry_type": "stringing", "env_temp": 21.0, "env_humidity": 40.0, "outcome": "success", "lesson": "Clean PETG print at 230C with gentle retraction (moderate distance, ~40mm/s) in dry conditions. PETG stays molten longer than PLA, so gentle retraction plus fast travel beats aggressive retraction, which clogs.", "source": "seed", "timestamp": "2026-05-20T10:55:00Z"}