How to fix stringy and messy TPU 3D prints

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

Answer: Stringing and messiness in TPU prints often result from improper retraction settings and print temperature. TPU is flexible and prone to oozing, so start by lowering your print temperature by 5-10°C to reduce filament flow. Typical TPU prints work well between 210°C and 230°C, but check your filament specs. Increase retraction distance slightly (around 1-3 mm) and slow down retraction speed to prevent filament jamming. Also, slow your print speed to about 20-30 mm/s, as TPU benefits from slower extrusion. Enable combing or avoid crossing open spaces during travel moves to reduce stringing. Finally, ensure your nozzle is clean and your filament dry, as moisture can worsen stringing. Adjust these settings step-by-step and run small test prints until the stringing improves.