Tag: retraction

A single piece on retraction: how retraction and pressure advance on flexible filaments like TPU differ from other materials.

2 Oct 2026  •  6 mins read

Bambu Lab TPU not extruding? Rule out the nozzle

TPU starves on the first layer while PETG prints fine? Reset to Generic TPU, rule out a high-flow CHT-style nozzle, then work on the stringing.

7 Sep 2026  •  7 mins read

TPU print settings: pressure advance, drying, speed

Flexible filament prints slow, will not print wet, and wants a much higher pressure advance. Measured ranges, and why each setting moves.