3D Printing of Silicone Elastomers for Soft Actuators

A procedure for 3D printing of silicone elastomers with a direct ink writing (DIW) process has demonstrated great potential in areas as diverse flexible electronics, medical devices, and soft robotics. In this report, we propose comprehensive guide highly stretchable silicones response to material, equipment dilemmas. Specifically, first tested the material properties Dow Corning 737, then modeled simulated two commonly used needles select suitable needle, followed by parameter optimization experiments using built DIW printer find out appropriate speed layer height defined air pressure needle diameter. Finally, optimal combination parameters was obtained. For further demonstration, artificial muscles structurally complex grippers were also printed directly verify feasibility high-precision actuators materials. We believe that work could provide print matter wide range application scenarios.