Dry the Recreus TPU 70 Filament

To eliminate surface voids and micro-bubbles caused by moisture absorption, perform the following drying procedure:

1. Place the Recreus TPU 70 filament spool into a dedicated filament dryer.
2. Set the dryer temperature to 55°C.
3. Dry the filament for a continuous period of 4 to 8 hours.
4. Once the drying cycle is complete, immediately load the filament into the printer to prevent it from re-absorbing ambient moisture.
5. Verify the fix by performing a test print and inspecting the surface for the absence of popping, crackling sounds, and improved surface finish quality.