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Drawing of a spool of carbon or glass-fibre filled filament

A part made by Bambu Lab

PLA-CF

Bambu carbon-fibre-filled PLA, 1.75 mm; Bambu says do not use a stainless steel nozzle with it.

Bambu Lab's page for this part

PLA-CF: Bambu Lab's answer for each printer we cover
PrinterAnswerVersionGet it
Bambu Lab A1Conflicting information
  • Whichever page you follow, Bambu says these filaments need a hardened steel nozzle. The A1 ships with a stainless steel nozzle, which Bambu says wears out quickly with them.
  • Fitting a hardened nozzle meets that one requirement. It doesn't settle the disagreement between Bambu's two pages.
5 quotes from Bambu Lab, checked 11 October 2026		All colours
Bambu Lab P1SNot recommended
  • Bambu's P1S page says not to print carbon or glass-fibre filled filament directly, before an extruder and hotend upgrade is done.
  • Bambu says not to use a stainless steel nozzle with this filament, and the P1S ships with one. A 0.2 mm nozzle is not compatible.
5 quotes from Bambu Lab, checked 11 October 2026		All colours

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Versions 1

Sold by colour, spool or refill. Bambu Lab doesn't show a part number for this part on its pages.

VersionDetailsMaker part number
All colours Not confirmed yet

The evidence, printer by printer

A1

On the Bambu Lab A1

Conflicting information The maker's pages disagree

Bambu's own pages say different things about this, so we give no verdict. Both are quoted below.

What Bambu says either way

  • Whichever page you follow, Bambu says these filaments need a hardened steel nozzle. The A1 ships with a stainless steel nozzle, which Bambu says wears out quickly with them.
  • Fitting a hardened nozzle meets that one requirement. It doesn't settle the disagreement between Bambu's two pages.
5 quotes from Bambu Lab, checked 11 October 2026. See the maker's words

  1. SRC 01 UK store product page, visible text

    Supported Filament PLA, PETG, TPU, PVA Ideal ABS, ASA, PC, PA, PET, Carbon/Glass Fiber Reinforced Polymer Not Recommended

  2. SRC 02 Bambu Lab wiki page, visible text

    Filament Open-frame printer (A Series, P1P, etc.) Enclosed printer (H2 Series, X2D, P2S, X1 Series, P1S, etc.) AMS / AMS lite Compatibility

  3. SRC 03 Bambu Lab wiki page, visible text

    PLA-CF/GF Compatible Compatible Bambu PLA-CF: Compatible

  4. SRC 04 UK store product page, visible text

    The standard nozzle is made of stainless steel. ... such as PLA-CF/GF, ... it is necessary to replace the nozzle with hardened steel to prevent excessive wear.

  5. SRC 05 UK store product page, visible text

    Cautions for Use 0.2 mm Nozzle NOT Compatible Stainless Steel Nozzle NOT Recommended All AMS Series Compatible
P1S

On the Bambu Lab P1S

Not recommended The maker's own words

Limits

  • Bambu's P1S page says not to print carbon or glass-fibre filled filament directly, before an extruder and hotend upgrade is done.
  • Bambu says not to use a stainless steel nozzle with this filament, and the P1S ships with one. A 0.2 mm nozzle is not compatible.
5 quotes from Bambu Lab, checked 11 October 2026. See the maker's words

  1. SRC 01 Bambu Lab wiki page, visible text

    Filament Open-frame printer (A Series, P1P, etc.) Enclosed printer (H2 Series, X2D, P2S, X1 Series, P1S, etc.) AMS / AMS lite Compatibility

  2. SRC 02 Bambu Lab wiki page, visible text

    PLA-CF/GF Compatible Compatible Bambu PLA-CF: Compatible

  3. SRC 03 UK store product page, visible text

    it is not recommended to directly print fiber-reinforced filaments such as glass fiber or carbon fiber, before an extruder and hotend upgrade is done

  4. SRC 04 UK store product page, visible text

    Cautions for Use 0.2 mm Nozzle NOT Compatible Stainless Steel Nozzle NOT Recommended All AMS Series Compatible

  5. SRC 05 Bambu Lab wiki page, visible text

    P1S comes standard with a 0.4mm stainless steel nozzle

What Bambu names instead

Other filament parts

Filament5

Every part, by kind

We haven't physically tested this part. Every answer above quotes Bambu Lab's own pages, checked on 11 October 2026. For every Bambu Lab printer on one page, see the Bambu Lab printers page. Spotted a mistake? Report a mistake.