Multi-Material FDM by Print-Pause-Print: Interface Adhesion, Mechanical Synergy, and Material Compatibility Matrices
The print-pause-print method enables multi-material FDM parts without dual extrusion hardware — but interface adhesion between dissimilar polymers varies dramatically. ABS-PETG interfaces in the APA_171 configuration (1 ABS outer, 7 PETG inner layers) achieve 33.6 MPa tensile strength with improved hardness and reduced friction. We present compatibility matrices for 12 material pairings and optimal layer sequencing strategies from Wiley Polymer Engineering 2025 and independent studies.
Print-pause-print membuka multi-material FDM tanpa hardware dual extrusion. Wiley Polymer Engineering (2025) memvalidasi ABS-PETG dengan konfigurasi APA_171: 33.6 MPa tensile, hardness tertinggi, friction coefficient terendah.
Material Compatibility Matrix
| PLA | PETG | ABS | TPU | |
|---|---|---|---|---|
| PLA | ✓ | Δ Weak | ✗ | Δ Moderate |
| PETG | Δ Weak | ✓ | ✓ Good | Δ Weak |
| ABS | ✗ | ✓ Good | ✓ | Δ Weak |
| TPU | Δ Moderate | Δ Weak | Δ Weak | ✓ |
PLA-ABS tidak kompatibel: perbedaan suhu printing (190 vs 240°C) menyebabkan delaminasi. ABS-PETG adalah kombinasi paling menjanjikan untuk structural multi-material.
Referensi
- [1] Wiley Polymer Eng. & Science (2025) — ABS/PETG multi-material
- [2] MDPI JMMP (2023) — multi-material FDM review
- [3] Bambu Lab Wiki — AMS multi-material
- [4] ResearchGate (2023) — polymer interface adhesion
- [5] Stratasys — soluble support technology
- [6] ASTM D3163 — lap shear for plastics
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