data/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"}
{"job_id":"ingest-001","material":"ABS","geometry_type":"warping","env_temp":20.0,"env_humidity":40.0,"outcome":"failed_sag","lesson":"ABS corners lifted in an open, cool room. ABS needs an enclosure and a 100-110C bed; without it, warping is near-certain regardless of settings.","source":"ingested","timestamp":"2026-05-22T09:00:00Z"}
{"job_id":"ingest-002","material":"ABS","geometry_type":"adhesion","env_temp":24.0,"env_humidity":45.0,"outcome":"success","lesson":"ABS first layer held with bed at 105C, brim, and fan off for opening layers. Draught control matters more than glue for ABS adhesion.","source":"ingested","timestamp":"2026-05-22T09:05:00Z"}
{"job_id":"ingest-003","material":"TPU","geometry_type":"stringing","env_temp":23.0,"env_humidity":55.0,"outcome":"failed_stringing","lesson":"TPU strung badly; it is highly hygroscopic. Dry the spool and print slow (~25mm/s) with minimal retraction — TPU clogs with aggressive retraction.","source":"ingested","timestamp":"2026-05-22T09:10:00Z"}
{"job_id":"ingest-004","material":"PETG","geometry_type":"stringing","env_temp":26.0,"env_humidity":65.0,"outcome":"failed_stringing","lesson":"PETG strings heavily in humid conditions. Dry filament at 65C for 4+ hours, then lower nozzle temp 5-10C and increase retraction to 5-6mm. Wet PETG is the #1 cause of stringing.","source":"ingested","timestamp":"2026-06-12T12:00:00Z"}
{"job_id":"ingest-005","material":"PETG","geometry_type":"bridge","env_temp":24.0,"env_humidity":44.0,"outcome":"success","lesson":"PETG bridges cleanly with fan at 80%, nozzle 240C, and retraction at 5mm. PETG likes more cooling than people think — just not on the first layer.","source":"ingested","timestamp":"2026-06-12T12:05:00Z"}
{"job_id":"ingest-006","material":"PLA","geometry_type":"overhang","env_temp":31.0,"env_humidity":40.0,"outcome":"failed_sag","lesson":"PLA overhangs sag in a hot room (31C ambient). Max fan (100%) and lower nozzle to 200C rescued the next print. PLA needs aggressive cooling when ambient is above 28C.","source":"ingested","timestamp":"2026-06-12T12:10:00Z"}
{"job_id":"ingest-007","material":"PLA","geometry_type":"vase","env_temp":21.0,"env_humidity":40.0,"outcome":"success","lesson":"PLA vase mode at 205C/60C bed with 100% fan produced a clean spiral. PLA is forgiving in cool, dry rooms — the baseline material for vase-mode prints.","source":"ingested","timestamp":"2026-06-12T12:15:00Z"}
{"job_id":"ingest-008","material":"ABS","geometry_type":"overhang","env_temp":25.0,"env_humidity":42.0,"outcome":"failed_sag","lesson":"ABS overhangs curled upward at 80% fan — ABS hates part cooling. Keep fan at 0-20% for ABS, rely on enclosure ambient temp instead. Fan on ABS causes layer delamination.","source":"ingested","timestamp":"2026-06-12T12:20:00Z"}
{"job_id":"ingest-009","material":"TPU","geometry_type":"stringing","env_temp":22.0,"env_humidity":35.0,"outcome":"success","lesson":"TPU printed clean with 3mm retraction at 25mm/s in a dry room. TPU's flexibility means retraction must be slow and short — fast retraction stretches the filament instead of pulling it back.","source":"ingested","timestamp":"2026-06-12T12:25:00Z"}
{"job_id":"ingest-010","material":"PETG","geometry_type":"adhesion","env_temp":22.0,"env_humidity":50.0,"outcome":"success","lesson":"PETG adhesion is strong on PEI at 80C bed — too strong on smooth PEI without release agent. Use textured PEI or glue stick as a release layer, not an adhesion aid, for PETG.","source":"ingested","timestamp":"2026-06-12T12:30:00Z"}
{"job_id": "octo-petg-stringy-240", "material": "PETG", "geometry_type": "stringing", "env_temp": 22.0, "env_humidity": 50.0, "outcome": "failed_stringing", "lesson": "My own PETG print at 240C nozzle came out very stringy on a retraction-heavy part. PETG strings when the nozzle runs hot or the spool is damp - dry the spool, drop ~10C, and increase retraction.", "source": "ingested", "timestamp": "2024-05-20T20:57:00+00:00"}
{"job_id": "modal-saviour-detach-b6bc015e", "material": "PLA", "geometry_type": "adhesion", "env_temp": 22.0, "env_humidity": 45.0, "outcome": "failed_sag", "lesson": "Print detachment detected when layer-to-layer NRMSE score > 1.0 AND 5-layer deviance > 1.0. Large structural changes across consecutive layers indicate the part has separated from the bed. Check bed adhesion: clean surface, raise bed temp, use brim or raft.", "source": "ingested", "timestamp": "2026-06-12T18:29:36.460621+00:00"}
{"job_id": "modal-saviour-clog-81f35c76", "material": "PLA", "geometry_type": "stringing", "env_temp": 22.0, "env_humidity": 45.0, "outcome": "failed_stringing", "lesson": "Filament runout or nozzle clog detected when NRMSE score < 0.2 AND deviance < 0.2. Near-zero structural change means no material is being deposited. Check filament spool, extruder tension, and nozzle for clogs.", "source": "ingested", "timestamp": "2026-06-12T18:29:36.460621+00:00"}
{"job_id": "modal-saviour-break-1cbfb724", "material": "PLA", "geometry_type": "overhang", "env_temp": 22.0, "env_humidity": 45.0, "outcome": "failed_sag", "lesson": "Partial breakage detected when frame-to-frame score delta > 0.2 AND deviance delta > 0.2. Sudden structural changes mid-print indicate layer delamination or part fracture. Reduce cooling fan, increase nozzle temp, check for drafts.", "source": "ingested", "timestamp": "2026-06-12T18:29:36.460621+00:00"}