Flexible Actuation with Intrinsic Sensing for Ram Extrusion 3D Printing

Abstract

Abstract This work presents a flexible actuation system with intrinsic sensing for a ram extrusion printhead used in liquid deposition modeling (LDM) technology. The system enables the control of extrusion flow in both pressure and volumetric modes. A mathematical model is used to design and simulate the printhead. The system incorporates real-time monitoring of extrusion pressure and flow rate, allowing for precise control and adjustment during the printing process. In addition to extrusion-flow control, the system has the capability to detect printing-material properties, providing valuable insights for further optimization of the printing process. The proposed system offers the advantage of improved pressure and flow control as well as the ability to monitor and respond to the properties of printing material. Overall, this paper enhances the performance and efficiency of ram extrusion in 3D printing.