# 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.