You Can Mass Finish FDM Parts

mass_finish_before_after_bowls_w640For additive manufacturing applications where surface finish is important but volumes are too high for hand-finishing, I’ve long suspected that mass finishing would work. This time-tested method of polishing parts by the batch is traditionally used on metal components, so I set to work experimenting on Fused Deposition Modeling (FDM) parts. After much testing with various mass-finishing media and processing times, I’m pleased to recommend this process for FDM parts built with ABS-M30, PC, PC-ABS, ULTEM 9085 and PPSF thermoplastics.

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