Bowden Tube A Bowden tube is a flexible, hollow tube used in some 3D printers to guide the filament from the extruder to the hot end. It is an essential component in Bowden-style extrusion systems, where the extruder motor is mounted away from the hot end, typically on the printer frame. This setup reduces the weight of the moving print head, allowing for faster and more precise movements. The tube is typically made from low-friction materials like PTFE (Teflon) to minimize resistance as the filament travels through it. However, Bowden tubes can be less effective with flexible filaments, as these materials may buckle or kink during extrusion due to the distance and reduced direct control over the filament. |