REDUCING PROTOTYPE FABRICATION TIME THROUGH ENHANCED MATERIAL EXTRUSION PROCESS CAPABILITY

Abstract 3D printing is a widely used technology for automating the fabrication of prototypes. The benefits are wide reaching, and include low required expertise, accurate geometric form processibility many materials. However, production certain forms – especially large can be slow. From review sub-systems, hotend commonly found to limiting factor. To improve this, modified nozzle design considered that incorporates flat copper plate within flow stream. Analytical simulation was guide this before experimental methods validated modifications. maximum volumetric rate standard 14 mm3/s. best performing increased 26 mm3/s an 86% increase. A series popular parts were further considered, demonstrating ∼48% time reduction, mean ∼23%. This enables printed prototypes made more efficiently both with regards cycle energy use allows designers rapidly than previously possible. By extension, improves efficiency process.