{
  "opening": "Use the spool's own cooling note, and treat every fan percentage in these threads as that comment. PolyLite PLA lists the fan on. The ABS replies say the fan off, or a low percent, for layer adhesion.",
  "question": "How much part cooling fan should I use per material?",
  "slug": "cooling",
  "useCase": "troubleshooting",
  "useCaseLabel": "Troubleshooting",
  "updated": "2026-10-20",
  "shortAnswer": "Use the spool's own cooling note, and treat every fan percentage in these threads as that comment. PolyLite PLA lists the fan on. The ABS replies say the fan off, or a low percent, for layer adhesion.",
  "recommendedMaterials": [
    "pla",
    "petg",
    "abs"
  ],
  "printerConsiderations": [
    "PLA warping on r/BambuLab 11k02bp drew a score-21 reply to turn the aux fan off for the whole print. The cup thread's score-27 reply says the early layers are not cooling enough and to raise minimum layer time. A score-3 reply says to turn the aux fan on and not to print PLA fully enclosed.",
    "ABS fan figures in r/FixMyPrint 1eq1o4v are a score-18 reply at off or about 25%, a score-4 reply at off or at most 15–20% on overhangs, and a score-11 reply on an enclosed v400 with fan minimum 0 and maximum 20. The v400 is not a printer in this catalog. That reply also preheats the bed to 120 °C (248 °F), drops it to 95 °C (203 °F), and reads a chamber around 47 °C (117 °F).",
    "r/3Dprinting wcruou is PLA+ fittings for a PC water loop, not a part-cooling fan test. A score-12 reply says PLA degrades in water and to treat the print as a prototype for an ABS part. A score-4 reply guesses loop water around 40 °C (104 °F). That guess is the comment."
  ],
  "pros": [
    "PolyLite PLA's fan-on line is the product page. The Reddit percentages stay labeled as comments.",
    "The SUNLU ABS temperatures in the post sit inside the SUNLU ABS nozzle and on the bottom of its bed."
  ],
  "cons": [
    "This page does not publish one fan percent for PLA, one for PETG, and one for ABS.",
    "The score-4 ABS reply also suggests a 110 °C (230 °F) bed preheat for about 30 minutes. 110 °C (230 °F) is the top of the Bambu ABS and SUNLU ABS beds. The preheat time is the comment."
  ],
  "community": "r/BambuLab 11k02bp is warping PLA on PEI, a 70 °C (158 °F) bed, and no cooling for the first 10 layers. A score-21 reply says to turn the aux fan off for the whole print. A score-8 reply says to lower the bed to 50 °C (122 °F). r/FixMyPrint 1kihpei is rippling on cups in Polymaker PLA matte at 220 °C (428 °F) and a 55 °C (131 °F) bed, aux fan off, 0.6 mm nozzle, on a P1S. The score-27 reply says the small layers are not cooling long enough and to raise minimum layer time. A score-3 reply says to turn the aux fan on and that PLA is a poor fit in a fully closed printer. r/FixMyPrint 1eq1o4v is a first ABS print that lifted. The poster lists an FLSun T1, SUNLU ABS, 250 °C (482 °F), 260 °C (500 °F) on the first layer, and a 90 °C (194 °F) bed. A score-18 reply says the part fan off, or about 25%, for layer adhesion. A score-4 reply says stay at 260 °C (500 °F) and 100 °C (212 °F), fans off or at most 15–20% for overhangs, and a 110 °C (230 °F) preheat. A score-11 reply prints ASA and ABS on an enclosed v400 with the fan from 0 to 20, a bed preheated to 120 °C (248 °F) then run at 95 °C (203 °F), and a chamber around 47 °C (117 °F). r/BambuLab zz2kd2 tells people in a cool room to set the chamber fan to 10% on the screen. The poster then sees a chamber of 39 °C (102 °F) and calls that good for strong PETG. r/3Dprinting wcruou is printed G1/4 water-cooling fittings in PLA+ at 100% infill. A score-12 reply says PLA degrades in water. A score-4 reply mentions loop water around 40 °C (104 °F) and a video of a softened tube.",
  "related": [
    "bridging",
    "petg_print",
    "abs_print",
    "warping"
  ],
  "faq": [
    {
      "q": "What fan percent do the ABS comments use?",
      "a": "On r/FixMyPrint 1eq1o4v a score-18 reply says off, or about 25%. A score-4 reply says off, or at most 15–20% on overhangs, at 260 °C (500 °F) and a 100 °C (212 °F) bed. A score-11 reply on a v400 uses a fan minimum of 0 and a maximum of 20. Bambu ABS lists 230–260 °C (446–500 °F) and a bed of 90–110 °C (194–230 °F). The percentages stay comments."
    },
    {
      "q": "Does PolyLite PLA list a fan percent?",
      "a": "The product page lists the fan on, with a nozzle of 190–230 °C (374–446 °F), a bed of 25–60 °C (77–140 °F), and 40–60 mm/s. It does not list a percent. The cup post's aux fan was off at 220 °C (428 °F) and a 55 °C (131 °F) bed, which sits inside that row."
    }
  ],
  "sources": [
    {
      "title": "PolyLite PLA product page",
      "url": "https://us.polymaker.com/products/polylite-pla",
      "kind": "manufacturer"
    },
    {
      "title": "PolyLite PLA technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PLA_TDS_EN_V5.4.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Bambu ABS technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_ABS_Technical_Data_Sheet_V3.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Bambu PETG HF technical data sheet",
      "url": "https://store.bblcdn.com/ce12d65176a94f1086e6aefa238e62e2.pdf",
      "kind": "datasheet"
    },
    {
      "title": "SUNLU filament wiki",
      "url": "https://www.sunlu.com/wiki/61",
      "kind": "manufacturer"
    },
    {
      "title": "Community source, r/BambuLab 11k02bp",
      "url": "https://www.reddit.com/r/BambuLab/comments/11k02bp/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/3Dprinting wcruou",
      "url": "https://www.reddit.com/r/3Dprinting/comments/wcruou/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint 1kihpei",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/1kihpei/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint 1eq1o4v",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/1eq1o4v/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab zz2kd2",
      "url": "https://www.reddit.com/r/BambuLab/comments/zz2kd2/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "PolyLite PLA lists 190–230 °C (374–446 °F), a bed of 25–60 °C (77–140 °F), 40–60 mm/s, and the fan on, with drying at 55 °C (131 °F) for 6 h. r/FixMyPrint 1kihpei prints Polymaker PLA matte at 220 °C (428 °F) and a 55 °C (131 °F) bed with the aux fan off. Both temperatures sit inside this row. The aux-fan line is the post, not the product page.",
      "brand": "Polymaker",
      "product": "Polylite PLA",
      "material": "PLA",
      "url": "/brand/polymaker/polylite-pla",
      "nozzle": "190–230 °C (374–446 °F)",
      "bed": "25–60 °C (77–140 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PLA_TDS_EN_V5.4.pdf",
      "affiliateUrl": null
    },
    {
      "rank": 2,
      "note": "PLA Basic lists 190–230 °C (374–446 °F) and a bed of 35–45 °C (95–113 °F), with drying at 50 °C (122 °F) for 8 h. r/BambuLab 11k02bp is warping PLA on a 70 °C (158 °F) bed with no cooling for the first 10 layers. 70 °C (158 °F) is above this bed. A score-8 reply says to lower the bed to 50 °C (122 °F), which is also above this bed and inside PolyLite PLA's 25–60 °C (77–140 °F) bed.",
      "brand": "Bambu Lab",
      "product": "PLA Basic",
      "material": "PLA",
      "url": "/brand/bambu-lab/pla-basic",
      "nozzle": "190–230 °C (374–446 °F)",
      "bed": "35–45 °C (95–113 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0584/7236/6216/files/Bambu_PLA_Basic_Technical_Data_Sheet_bf3411ce-be39-4db7-9669-1b4671d2196b.pdf?v=1734060943",
      "affiliateUrl": null
    },
    {
      "rank": 3,
      "note": "PETG HF lists 230–260 °C (446–500 °F), a bed of 65–75 °C (149–167 °F), and drying at 65 °C (149 °F) for 8 h. r/BambuLab zz2kd2 sets the chamber fan to 10% from the printer screen and reports a chamber of 39 °C (102 °F), which the poster calls good for strong PETG. That 10% and 39 °C (102 °F) are the post, not this sheet.",
      "brand": "Bambu Lab",
      "product": "PETG HF",
      "material": "PETG",
      "url": "/brand/bambu-lab/petg-hf",
      "nozzle": "230–260 °C (446–500 °F)",
      "bed": "65–75 °C (149–167 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://store.bblcdn.com/ce12d65176a94f1086e6aefa238e62e2.pdf",
      "affiliateUrl": null
    },
    {
      "rank": 4,
      "note": "Bambu ABS lists 230–260 °C (446–500 °F), a bed of 90–110 °C (194–230 °F), and drying at 80 °C (176 °F) for 8 h. A score-4 reply on r/FixMyPrint 1eq1o4v says to stay at 260 °C (500 °F) and a 100 °C (212 °F) bed, with fans off or at most 15–20% on overhangs. 260 °C (500 °F) is the top of this nozzle. 100 °C (212 °F) is inside this bed. The percentages are the comment.",
      "brand": "Bambu Lab",
      "product": "ABS",
      "material": "ABS",
      "url": "/brand/bambu-lab/abs",
      "nozzle": "230–260 °C (446–500 °F)",
      "bed": "90–110 °C (194–230 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_ABS_Technical_Data_Sheet_V3.pdf",
      "affiliateUrl": null
    },
    {
      "rank": 5,
      "note": "SUNLU ABS lists 230–260 °C (446–500 °F) and a bed of 90–110 °C (194–230 °F), with drying at 75–85 °C (167–185 °F) for 8 h from the SUNLU wiki. The original poster on r/FixMyPrint 1eq1o4v lists SUNLU ABS at 250 °C (482 °F), 260 °C (500 °F) on the first layer, and a 90 °C (194 °F) bed. Those three numbers sit on this row.",
      "brand": "SUNLU",
      "product": "ABS",
      "material": "ABS",
      "url": "/brand/sunlu/abs",
      "nozzle": "230–260 °C (446–500 °F)",
      "bed": "90–110 °C (194–230 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    }
  ]
}