Where the numbers come from
The calculator reads only the figures in the table below, copied from the makers' own documents and checked against them in October 2026. Bambu Lab's forced air oven figure is the main reading; Polymaker and Prusa sometimes differ from it by as much as 25 °C, and their numbers are listed beside it. Brands differ, so the maker of your spool has the last word.
The AMS rows come from Bambu Lab's drying table for its two drying units. The AMS 2 Pro heats to 65 °C, which rules out ABS, ASA, polycarbonate, nylon and PVA. The AMS HT reaches 85 °C.
| Material | Oven or dryer (Bambu Lab) | AMS 2 Pro | AMS HT | Other makers |
|---|---|---|---|---|
| PLA | 50 °C, 8 h | 45 °C, 12 h | 45 °C, 12 h | Polymaker PolyLite PLA 55 °C, 6 h. Prusa 45 °C, 6 h. |
| PLA Silk or Galaxy | 55 °C, 8 h | 45 °C, 12 h | 45 °C, 12 h | None collected |
| PLA Wood | 55-65 °C, 8 h | 45 °C, 12 h | 45 °C, 12 h | Bambu Lab marks drying before use as required. |
| PLA-CF or PLA-GF | 50-60 °C, 8 h | 45 °C, 12 h | 45 °C, 12 h | Polymaker PLA-CF 55 °C, 6 h. |
| PETG or PETG-CF | 60-65 °C, 8 h | 65 °C, 12 h | 65 °C, 12 h | Polymaker PolyLite PETG 65 °C, 6 h. Prusa 55 °C, 6 h. |
| TPU 85A to 95A | 70 °C, 8 h | 65 °C, 12 h (may not dry fully) | 75 °C, 18 h | Polymaker TPU95 70 °C, 8 h. Prusa 60 °C, 4-6 h. |
| ABS | 75-85 °C, 8 h | Not compatible | 80 °C, 8 h | Polymaker PolyLite ABS 70 °C, 6 h. |
| ASA | 75-85 °C, 8 h | Not compatible | 80 °C, 8 h | Polymaker ASA 70 °C, 7 h. Prusa 80 °C, 4 h. |
| Polycarbonate | 75-85 °C, 8 h | Not compatible | 80 °C, 8 h | Polymaker PolyLite PC 75 °C, 6 h. Prusa PC Blend 85 °C, 5 h. |
| Nylon, PA6-CF, PAHT-CF | 75-85 °C, 8-12 h | Not compatible | 85 °C, 12 h | Polymaker CoPA 100 °C, 8 h. Polymaker PA6-CF20 100 °C, 10 h. Prusa PA11-CF 90 °C, 6 h. |
| PET-CF | 80 °C, 8-12 h | Not compatible | 80 °C, 12 h | Polymaker Fiberon PET-CF17 100 °C, 10 h. |
| PVA | 75-85 °C, 8-12 h | Not compatible | 85 °C, 18 h | Polymaker PolyDissolve S1 80 °C, 12 h. |
| PPA-CF or PPS-CF | 100-140 °C, 8-12 h | Not compatible | Not compatible | Neither AMS unit can dry these. |
For the reasoning behind the figures, see the filament drying guide.
Questions
What temperature should I dry PLA at?
Bambu Lab gives 50 °C for 8 hours in a forced air oven or dryer and 45 °C for 12 hours in its AMS units. Polymaker gives 55 °C for 6 hours for PolyLite PLA, and Prusa 45 °C for 6 hours.
Can the AMS 2 Pro dry ABS or nylon?
No. It heats to 65 °C, and Bambu Lab lists ABS, ASA, PC, nylon, PET-CF and PVA as not compatible with it. The AMS HT reaches 85 °C and covers them.
How hot should I dry PETG?
Bambu Lab gives 60-65 °C for 8 hours in an oven or dryer and 65 °C for 12 hours in either AMS. Polymaker uses 65 °C for 6 hours and Prusa 55 °C for 6 hours.
