Our group Complex Materials in ETH Zurich have been collaborating with Strait Access Technologies (Cape Town) to develop a custom fit, fully 3D printed Heart Valve. Full Details : Bioinspired Heart Valve Prosthesis made by Silicone Additive Manufacturing https://doi.org/10.1016/j.matt.2019.05.013 Matter (Cell Press) Volume 1, Issue 1. Fergal B.Coulter, Manuel Schaffner, Jakob A. Faber, Ahmad Rafsanjani, […]
I’m very excited to have two papers published in 3D printing and Additive Manufacturing Journal (Mary Ann Liebert Publishers) this quarter. The papers are also the featured cover of the journal! Production Techniques for 3D Printed Inflatable Elastomer Structures: Part I—Fabricating Air-Permeable Forms and Coating with Inflatable Silicone Membranes via Spray Deposition. https://doi.org/10.1089/3dp.2017.0068 Production Techniques […]
A Laser 3D was designed and programmed to measure the dimensions of an inflated DEA membranes.
Multiple layers of hard silicone (Shore A 73) are printed with a seamless hexachiral structure on an inflated silicone balloon. When the layers are cured, the balloon is deflated, leaving a Minimum Energy Structure (MES) tube.
A 3D printer was built, capable of spray depositing silicone on to double curved (rotating) mandrels
As a method to impart pre-strain into silicone dielectric membranes, a method was devised for casting air permeable mandrels
Within my PhD, I have designed a 4 axis 3D printer. This scans the shape of substrate before printing upon it.
My research focuses on Dielectric Elastomer Actuators. Below are some simple examples of actuation Silver electrode on silicone DEA (Danfoss Polypower) An example of etching these membranes : A simple VHB and carbon grease DEA
I developed a technique for creating open cell soft silicone sponges. When coated in a conductive layer, these work well as soft pressure or stretch sensors.
My research incorporates work on Dielectric Elastomer Minimum Energy Structures. Below are two early tests – stretched and collapsed using a Poincaré Disk tessellation.