Chuck Hull

3D printing

3D printing is a layer-by-layer fabrication method rooted in Chuck Hull’s 1984 stereolithography patent. It evolved from rapid prototyping in the 1980s into an industrial production option by 2019. Its real advantage is enabling previously impossible geometries—like hollow or truss-structured parts—that cut weight and waste. Fused deposition modeling (FDM) was the most common process as of 2020. It does not replace conventional manufacturing at scale. It does not solve material consistency, certification, or throughput problems. Its impact is precise, not pervasive.