# How much part cooling fan should I use per material?

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.

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.

Part cooling in this bank is a set of comments, not one table. PLA replies argue both directions. ABS replies keep the fan low. PETG's only number here is a chamber fan on one printer.

## PLA

[PolyLite PLA](/brand/polymaker/polylite-pla) lists the fan on, a nozzle of 190–230 °C (374–446 °F), a bed of 25–60 °C (77–140 °F), and 40–60 mm/s. Bridging with that fan line is [bridging](/answers/bridging).

[r/BambuLab 11k02bp](https://www.reddit.com/r/BambuLab/comments/11k02bp/) is warping PLA, a 70 °C (158 °F) bed, and no fan for the first 10 layers. A score-21 reply turns the aux fan off for the whole print. A score-8 reply lowers the bed to 50 °C (122 °F). [PLA Basic](/brand/bambu-lab/pla-basic) lists a bed of 35–45 °C (95–113 °F), so both 70 °C (158 °F) and 50 °C (122 °F) are above that row. 50 °C (122 °F) sits inside PolyLite PLA's bed. Warping process is [warping](/answers/warping).

[r/FixMyPrint 1kihpei](https://www.reddit.com/r/FixMyPrint/comments/1kihpei/) is Polymaker PLA matte at 220 °C (428 °F) and 55 °C (131 °F), aux fan off, 0.6 mm nozzle, on a P1S. The score-27 reply says the small layers need a longer minimum layer time. A score-3 reply turns the aux fan on and says not to print PLA fully enclosed. 220 °C (428 °F) and 55 °C (131 °F) sit inside the PolyLite PLA row.

## PETG

[r/BambuLab zz2kd2](https://www.reddit.com/r/BambuLab/comments/zz2kd2/) sets the chamber fan to 10% from the screen and reports a chamber of 39 °C (102 °F), which the poster calls good for strong PETG. That pair is the post. [PETG HF](/brand/bambu-lab/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, and it does not list a chamber-fan percent. Low part cooling for PETG is the process on [good PETG prints](/answers/petg_print).

## ABS

[r/FixMyPrint 1eq1o4v](https://www.reddit.com/r/FixMyPrint/comments/1eq1o4v/) is a first ABS print that lifted. The poster lists SUNLU ABS at 250 °C (482 °F), 260 °C (500 °F) on the first layer, and a 90 °C (194 °F) bed. [SUNLU ABS](/brand/sunlu/abs) lists 230–260 °C (446–500 °F) and a bed of 90–110 °C (194–230 °F), so those settings sit on the row. A score-18 reply wants the part fan off, or about 25%. A score-4 reply stays at 260 °C (500 °F) and 100 °C (212 °F), with the fan off or at most 15–20% on overhangs. [Bambu ABS](/brand/bambu-lab/abs) lists 230–260 °C (446–500 °F) and 90–110 °C (194–230 °F), so 260 °C (500 °F) is the top of the nozzle and 100 °C (212 °F) is inside the bed. A score-11 reply on an enclosed v400, which is not in this printer table, runs the fan from 0 to 20, preheats the bed to 120 °C (248 °F), prints at 95 °C (203 °F), and reads a chamber around 47 °C (117 °F). Little or no part cooling is the ABS process on [ABS printing](/answers/abs_print).

[r/3Dprinting wcruou](https://www.reddit.com/r/3Dprinting/comments/wcruou/) is PLA+ water-cooling fittings, not a fan test. A score-12 reply says PLA degrades in water and to prototype, then make the part in ABS. A score-4 reply guesses loop water around 40 °C (104 °F). [PLA](/material/pla), [PETG](/material/petg), and [ABS](/material/abs) are the material pages.

Updated 2026-10-20. Sources accessed 2026-10-20. Use case: Troubleshooting.

## Ranked filaments

| Rank | Filament | Nozzle | Bed | Price per kg |
| --- | --- | --- | --- | --- |
| 1 | Polymaker Polylite PLA | 190–230 °C (374–446 °F) | 25–60 °C (77–140 °F) | — |
| 2 | Bambu Lab PLA Basic | 190–230 °C (374–446 °F) | 35–45 °C (95–113 °F) | — |
| 3 | Bambu Lab PETG HF | 230–260 °C (446–500 °F) | 65–75 °C (149–167 °F) | — |
| 4 | Bambu Lab ABS | 230–260 °C (446–500 °F) | 90–110 °C (194–230 °F) | — |
| 5 | SUNLU ABS | 230–260 °C (446–500 °F) | 90–110 °C (194–230 °F) | — |

## What the community says

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.

## Sources

- [PolyLite PLA product page](https://us.polymaker.com/products/polylite-pla) (manufacturer)
- [PolyLite PLA technical data sheet](https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PLA_TDS_EN_V5.4.pdf) (datasheet)
- [Bambu ABS technical data sheet](https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_ABS_Technical_Data_Sheet_V3.pdf) (datasheet)
- [Bambu PETG HF technical data sheet](https://store.bblcdn.com/ce12d65176a94f1086e6aefa238e62e2.pdf) (datasheet)
- [SUNLU filament wiki](https://www.sunlu.com/wiki/61) (manufacturer)
- [Community source, r/BambuLab 11k02bp](https://www.reddit.com/r/BambuLab/comments/11k02bp/) (reddit)
- [Community source, r/3Dprinting wcruou](https://www.reddit.com/r/3Dprinting/comments/wcruou/) (reddit)
- [Community source, r/FixMyPrint 1kihpei](https://www.reddit.com/r/FixMyPrint/comments/1kihpei/) (reddit)
- [Community source, r/FixMyPrint 1eq1o4v](https://www.reddit.com/r/FixMyPrint/comments/1eq1o4v/) (reddit)
- [Community source, r/BambuLab zz2kd2](https://www.reddit.com/r/BambuLab/comments/zz2kd2/) (reddit)

HTML: https://filamentfacts.com/answers/cooling