Fused deposition modeling (FDM), a type of additive manufacturing process, is widely used in various fields owing to its low cost and short production time. However, materials commonly used in FDM, such as ABS and PLA, emit harmful gases and require e...
Fused deposition modeling (FDM), a type of additive manufacturing process, is widely used in various fields owing to its low cost and short production time. However, materials commonly used in FDM, such as ABS and PLA, emit harmful gases and require effective ventilation in enclosed chambers. In this study, an outdoor circulation system was applied to a closed FDM 3D printer to analyze the flow characteristics of hazardous gases inside a chamber. Computational fluid dynamics simulations were performed to investigate the temperature of the chamber, flow patterns, and behavior of the hazardous materials. Based on these analyses, optimal conditions for minimizing hazardous emissions during the FDM process were derived.