PETG Support Interface Test – PLA/PETG Separation

PETG Support Interface Test – PLA/PETG Separation Calibration This test model helps you determine whether your PETG filament works effectively as a support interface (separation layer) when printing with PLA. By printing this model, you can quickly evaluate: How well PETG prevents supports from bonding to PLA Ease of support removal Surface quality after separation Optimal interface settings in your slicer How it works The model is designed to simulate a typical support + interface scenario: Main structure printed in PLA Interface layers printed in PETG Allows direct comparison of adhesion and separation behavior What to test Different interface layer counts Z-distance / contact distance Support density PETG brand/type compatibility Recommended settings (starting point) Main material: PLA Support interface: PETG Interface layers: 2–4 Z-distance: 0.0–0.1 mm No cooling changes required Important notes PETG does not chemically bond well with PLA → ideal for support separation Results vary