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Diagnostic Case Summary

bambulab h2s tpu 70a recreus

In progress

3D printing · Started Aug 19, 2026 · by Adrian Sainz Murgoitio

Diagnostics

Bambu Lab H2S Poor Surface Finish Symptoms
Confirmed
Bambu Lab H2S System Printing Issues
Confirmed
Poor Surface Finish Due to Melt Zone Pressure Instability at High Speeds
Confirmed
Poor Surface Finish Due to Excessive Filament Path Friction
Ruled out
Poor Surface Finish Due to Mechanical Constraint or Buckling
Ruled out
Poor Surface Finish Due to Moisture Absorption
Ruled out

Diagnostics and Remedies considered but not confirmed

Calibrate Pressure Advance and Limit Volumetric Flow Rate
Remedy considered