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TPU settings for the Bambu Lab A1
Great match
These are tuned starting settings for printing TPU on the Bambu Lab A1. The Bambu Lab A1 has a direct-drive extruder and an all-metal hotend, so we set the hotend to 225°C and the bed to 50°C. TPU is flexible and prints best slow with a direct-drive extruder; Bowden setups must go very slow.
225°C
Hotend
50°C
Bed
25 mm/s
Speed
60%
Part fan
Recommended TPU profile
| Hotend temperature | 225°C (tower 210–235°C) |
| Bed temperature | 50°C |
| Print speed | 25 mm/s |
| Retraction | 1 mm (direct drive) |
| Part cooling fan | 60% |
| Bed adhesion | Sticks well; print slow and disable extra retraction. |
| Nozzle | Brass 0.4 mm is fine |
| Difficulty | Intermediate |
💡 Best uses for TPU: phone cases, gaskets, wheels.
FAQ
- What temperature should I print TPU on the Bambu Lab A1?
- Start at 225°C for the hotend and 50°C for the bed, then run a temperature tower across 210–235°C to dial in your exact filament brand.
- What print speed works for TPU on this printer?
- Around 25 mm/s is a safe starting point on the Bambu Lab A1. This printer can go faster once the profile is tuned, but start conservative for clean walls.
- What retraction should I use?
- Use about 1 mm of retraction (direct drive needs very little). If you see stringing with TPU, raise retraction speed before distance and dry the filament.
- Do I need an enclosure for TPU on the Bambu Lab A1?
- No, TPU prints fine in the open on the Bambu Lab A1.