{
  "opening": "Start with layer height, supports, and flow. These threads do not share one finish temperature, and the highest-scored ironing reply says not to use ironing.",
  "question": "How do I get a smooth surface finish?",
  "slug": "surface",
  "useCase": "finishing",
  "useCaseLabel": "Finishing",
  "updated": "2026-10-20",
  "shortAnswer": "Start with layer height, supports, and flow. These threads do not share one finish temperature, and the highest-scored ironing reply says not to use ironing.",
  "recommendedMaterials": [
    "pla",
    "asa"
  ],
  "printerConsiderations": [
    "A 0.2 mm nozzle does not forgive an overhang. The score-57 reply on r/FixMyPrint 1r2xxe4 says the rough faces are unsupported air, and a score-9 reply says a pristine underside needs soluble supports or a split model.",
    "0.08 mm and 0.10 mm are the layer heights in the posts. A score-6 reply on r/BambuLab 10k03sy calls 0.08 mm very small on a 0.4 mm nozzle.",
    "The same settings can still look different. r/FixMyPrint 190yq18 printed two white bodies back to back. The score-20 reply says to check lead screws and eccentric nuts."
  ],
  "pros": [
    "Layer height, flow, and ironing stay attached to the comment that stated them.",
    "Matte PLA is the spool the layer-line posts were already using, with its sheet temperatures."
  ],
  "cons": [
    "The 0.93 flow ratio is one comment about Bambu matte white. It is not a field on the PLA Matte row.",
    "A score-5 reply retells a video that PLA can take on enough moisture in 6 hours to change a print. Six hours is that retelling, not a cell in the drying dataset."
  ],
  "community": "r/FixMyPrint 1r2xxe4 is a 0.2 mm nozzle, Bambu Lab matte, 0.10 mm layers, and an AMS moisture reading of B, with stringing and mixed surfaces. The score-57 reply says the model is printing on air and that a 0.2 mm nozzle allows less overhang than a 0.4 mm nozzle. A score-9 reply says the underside will not look pristine without soluble supports, and that splitting the model is the better route. r/BambuLab 10k03sy is new Bambu matte PLA at 0.08 mm on a P1P. The score-16 reply calls the layer pattern a widespread consistency bug and says to open a ticket. A score-6 reply questions 0.08 mm. A score-5 reply says to recalibrate and tune flow by hand. A score-4 reply sets matte white to a flow ratio of 0.93 instead of 0.98. Another score-4 reply says they print PETG at 270 °C (518 °F) to melt layer lines together. r/FixMyPrint 190yq18 is two white parts, same filament and settings, one with stronger layer lines. The score-20 reply suspects Z binding. A score-5 reply seconds humidity and retells a video in which PLA picked up enough moisture in 6 hours to matter. r/prusa3d 12lmmhs is a first ironing attempt on a Prusa Mini in PLA. The score-19 reply says not to iron. A score-3 reply increases ironing flow by 5 percent at a time and, for a single print, uses an ironing speed of 70–80, and mentions ASA with acetone vapor for emblems. r/3Dprinting 1j4uiop is white filament that breaks between layers and is strong otherwise. The score-48 reply says the previous layer is too cool, worse in a draft and on a thin wall. A score-16 reply blames white pigment, says titanium oxide and is corrected to titanium dioxide, and says to try a tower or raise the nozzle by 10 to 15 degrees. The poster says the room had an air conditioner running.",
  "related": [
    "sanding",
    "high_detail",
    "matte",
    "wall_count"
  ],
  "faq": [
    {
      "q": "Will 0.08 mm layers remove the lines by themselves?",
      "a": "r/BambuLab 10k03sy already used 0.08 mm Bambu matte PLA on a P1P and still saw lines. One reply says that pattern is over-extrusion and sets matte white flow ratio to 0.93 against a 0.98 default. Another says 0.08 mm is very small for a 0.4 mm nozzle. The PLA Matte sheet lists 190–230 °C (374–446 °F) and a bed of 50–70 °C (122–158 °F)."
    },
    {
      "q": "Should I iron the top surface?",
      "a": "The score-19 reply on r/prusa3d 12lmmhs says not to. A score-3 reply on the same thread raises ironing flow by 5 percent at a time and, for one part, sets ironing speed to 70–80. Those speeds are the comment. They are not a Prusament PLA specification."
    }
  ],
  "sources": [
    {
      "title": "Bambu PLA Matte technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0584/7236/6216/files/Bambu_PLA_Matte_Technical_Data_Sheet_60a941f9-8495-48ec-b1b0-52e07ff0f4c2.pdf?v=1734060943",
      "kind": "datasheet"
    },
    {
      "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": "PolyLite ASA technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_ASA_TDS_EN_V5.4.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Open Filament Database, Prusament PLA",
      "url": "https://api.openfilamentdatabase.org/api/v1/brands/prusament/materials/PLA/filaments/pla/index.json",
      "kind": "other"
    },
    {
      "title": "Community source, r/FixMyPrint 1r2xxe4",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/1r2xxe4/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 10k03sy",
      "url": "https://www.reddit.com/r/BambuLab/comments/10k03sy/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint 190yq18",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/190yq18/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/prusa3d 12lmmhs",
      "url": "https://www.reddit.com/r/prusa3d/comments/12lmmhs/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/3Dprinting 1j4uiop",
      "url": "https://www.reddit.com/r/3Dprinting/comments/1j4uiop/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "PLA Matte technical data sheet. Nozzle 190–230 °C (374–446 °F), bed 50–70 °C (122–158 °F), drying at 50 °C (122 °F) for 8 h. r/BambuLab 10k03sy prints this family at 0.08 mm on a P1P. A score-4 reply sets matte white flow ratio to 0.93 against a 0.98 default. Both ratios are that comment.",
      "brand": "Bambu Lab",
      "product": "PLA Matte",
      "material": "PLA",
      "url": "/brand/bambu-lab/pla-matte",
      "nozzle": "190–230 °C (374–446 °F)",
      "bed": "50–70 °C (122–158 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0584/7236/6216/files/Bambu_PLA_Matte_Technical_Data_Sheet_60a941f9-8495-48ec-b1b0-52e07ff0f4c2.pdf?v=1734060943",
      "affiliateUrl": null
    },
    {
      "rank": 2,
      "note": "PolyLite PLA lists 190–230 °C (374–446 °F), a bed of 25–60 °C (77–140 °F), 40–60 mm/s, and drying at 55 °C (131 °F) for 6 h. r/3Dprinting 1j4uiop is white filament that splits between layers. A reply says to raise the nozzle by 10 to 15 degrees. That increase has to stay inside 190–230 °C (374–446 °F).",
      "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": 3,
      "note": "Prusament PLA lists 205–225 °C (401–437 °F) and a bed of 40–60 °C (104–140 °F). r/prusa3d 12lmmhs is ironing on a Prusa Mini in PLA. The score-19 reply says not to iron. A score-3 reply raises ironing flow by 5 percent at a time and, for one part, sets ironing speed to 70–80.",
      "brand": "Prusament",
      "product": "PLA",
      "material": "PLA",
      "url": "/brand/prusament/pla",
      "nozzle": "205–225 °C (401–437 °F)",
      "bed": "40–60 °C (104–140 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 4,
      "note": "PolyLite ASA lists 235–260 °C (455–500 °F) and a bed of 90–110 °C (194–230 °F). Drying is empty on the row. A score-3 reply on the ironing thread names ASA with acetone vapor for emblems. This page does not turn that into a vapor procedure or a temperature.",
      "brand": "Polymaker",
      "product": "Polylite ASA",
      "material": "ASA",
      "url": "/brand/polymaker/polylite-asa",
      "nozzle": "235–260 °C (455–500 °F)",
      "bed": "90–110 °C (194–230 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_ASA_TDS_EN_V5.4.pdf",
      "affiliateUrl": null
    }
  ]
}