Printing TPU on Bambu Lab P2S

Overview: This video provides a complete guide to printing TPU on the Bambu Lab P2S printer, including hardware setup, filament loading, drying requirements, custom profiles, and print results.

Mads Tech -Bambu Lab P2S & TPU - Everything You Need To Know!: https://www.youtube.com/watch?v=r4Qt5Yn1c6w

Hardware Setup & Limitations

• [00:01:01] AMS incompatibility: Standard TPU (Bambu TPU90/95 or third-party like Overture/Sainsmart) cannot use AMS or manual spool input
• [00:01:37] Direct feeding required: Bypass filament buffer - feed TPU directly into extruder (top) or printer back
• [00:02:24] PTFE tube modification: Replace stock tube with spare PTFE for top feeding
• [00:03:10] Spool holder solution: Use AMS lite, printed stand, or filament dryer due to awkward spool positioning

Filament Loading Process

• [00:03:38] Back feeding method (preferred): Push TPU through until it reaches extruder
• [00:03:50] Printer configuration:

  Step	Action
  1	Select "External Spool" → "Generic TPU"
  2	Choose color
  3	Acknowledge TPU warnings
  4	Load filament (apply gentle pressure until grabbed)

• [00:04:23] Cold pull recommendation: Bambu suggests it for cleaning; creator rarely needs it

Critical TPU Preparation

• [00:05:07] TPU is highly hygroscopic - must dry before use
• [00:05:26] Moisture symptoms:

  Problem	Cause
  Stringing	Wet TPU
  Surface bubbles	Moisture in filament

• [00:05:39] Even new TPU needs drying - don't assume it's dry

Printing Setup in Bambu Studio

• [00:06:02] Profile options:

  Profile Type	Notes
  Generic TPU	Built-in, good starting point
  Bambu TPU	For official filaments
  MADS TPU 95P2S	Custom profile for Overture TPU (download available)

• [00:07:17] Custom presets available: Tree supports & standard supports
• [00:07:49] Profile disclaimer: Custom profiles optimized for specific use case; Bambu defaults work well

Print Results & Quality

• [00:08:11] Demo print: DJI Osmo Nano case
• [00:08:18] Quality achieved:

  Feature	Result
  Surface finish	Very clean, no bobbling
  Overhangs	Tidy
  Support removal	Easy, minimal residue
  Interface layers	Clean

• [00:09:07] P2S capability: Matches other Bambu printers for TPU quality

Pro Tips & Accessories

• [00:09:21] Bambu splitter upgrade: Allows multiple PTFE inputs for easier TPU swapping
• Download links: Custom TPU profiles in description

Conclusion

The Bambu Lab P2S prints TPU excellently with proper setup. Key takeaways: Direct feed (bypass AMS/buffer), always dry TPU, use appropriate profiles. Custom profiles available but Bambu defaults sufficient for most users.