![]() At the same time, it is attached to it, minimizing the distance the filament must travel from the extruder to the hot end.Īlthough the quality, cost, and features of each 3D printer can vary, they all share many of the same fundamental parts. However, the distance the filament must travel is the only factor that favors and makes Direct Drive setups advantageous.Įxtruders in Direct Drives setups can be found above the hot end on the print head. Later on in the article, the caveat will be covered. On the other hand, another concept to grasp is that the extruder and hot end have been integrated into the print head, which is now quite large. The printing material is, therefore, thrust directly into the nozzle by the extruder in this method of filament extrusion. Eventually, it develops into a sizable portion of the print head. The extruder is directly connected to the hot end in a Direct Drive setup. The main difference between a Direct Drive extruder and a Bowden setup is basically the location of the extruder in relation to the hot end, which we will explain. A Direct Drive Extruder Setup: What Is It? Although they perform the same essential task, each has a unique set of advantages and disadvantages. When we discuss direct drive and Bowden, we are explicitly referring specifically to the extruder’s mounting position and how that impacts how it feeds filament into the hot end. Direct Drive and Bowden Extruder System Definitions We’ll address these issues and others in this comparison of direct drive vs Bowden extruder. To get to the printhead, the filament, therefore, passes through a PTFE tube.Īlthough the results of both setups are the same, the different designs have unintended consequences. In contrast, a Bowden system typically has the extruder mounted on the printer’s frame. The basic principle is the same – using an extruder to push filament through a heated nozzle – the difference is where that extruder is located.Ī direct extrusion system pushes the filament into the hot end by mounting the extruder on the printhead. When looking around for FDM printers, you’ll most likely run across the terms Direct Drive and Bowden.
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