Fused Filament Fabrication of Thermoplastics for Low Vacuum Applications
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We present two methods for post-processing thermoplastic fused filament fabrication (FFF) parts in efforts to create suitable low vacuum vessels. We compare ABS-CF, PC, PC+ABS, PAHT-CF, and PPS-CF filaments with and without post-processing. This study finds polycarbonate FFF parts to be suitable for vacuum applications with leak requirements in the 10−4 − 10−5 mbar · l · s−1 range after treatment with methylene chloride.