How to fix stringy and messy TPU 3D prints

Question: Why is my TPU 3D print stringy and messy?

Answer: Stringiness and messiness in TPU prints usually come from incorrect print settings or filament handling. TPU is flexible and can be tricky to print, so try these steps: 1) Lower your printing temperature by 5–10°C from the filament’s recommended range; too hot causes oozing. 2) Increase retraction distance slightly (around 2–3 mm) and speed to reduce filament oozing during travel moves. 3) Slow down your print speed to about 20–30 mm/s to improve control. 4) Ensure your filament path is smooth and the extruder is designed for flexible filaments to avoid jams. 5) Enable combing or coasting features in your slicer to reduce stringing. 6) Dry your filament if it’s absorbed moisture, which can cause bubbles and stringing. By adjusting these settings and handling, you should see much cleaner TPU prints without strings.