Custom 3D-Printing Pen was Designed to Weld Plastic Parts Together

Half-Baked Research developed a custom 3D printing pen that transforms the typical drawing tool into a powerful plastic welder. Unlike standard 3D pens that simply deposit melted filament, this device features a brass nozzle for superior heat transfer and an upgraded extruder system that delivers material faster and hotter. The tool can weld plastic parts by melting their edges and filling seams with new material, creating solid bonds that withstand stress unlike simple glue-like connections.