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Bambu Lab P1S — TPU 87A

⚙ Bambu Lab P1S Tested 2025
4/5
Notes
P1S direct drive. Bypass AMS — run TPU directly from spool. 87A shore — very soft, excellent flex.
Tips
Disable retraction entirely. Print very slowly. The softer the TPU, the slower you must go. Watch for "spaghetti" on overhangs — 87A sags more than 95A.
Details

P1S direct drive. Bypass AMS — run TPU directly from spool. 87A shore — very soft, excellent flex.

Temperatures

SettingValue
Nozzle225 °C
Bed35 °C
First Layer Bed40 °C

Speed

SettingValue
Print Speed25 mm/s
First Layer Speed10 mm/s

Cooling

SettingValue
Fan Speed0 %

Retraction

SettingValue
Distance0 mm (disabled)

Quality

SettingValue
Layer Height0.25 mm
Flow Rate100 %

Tips

Disable retraction entirely. Print very slowly. The softer the TPU, the slower you must go. Watch for "spaghetti" on overhangs — 87A sags more than 95A.