Prof Christophe Moser

Ecole Polytechnique Fédérale de Lausanne (EPFL) Laboratory of Applied Photonics Devices, Institut Microtechnique

Volumetric 3D printing of elastomeric parts

Abstract :

Most additive manufacturing methods such as fused-deposition modelling, selective laser melting or stereolithography create objects sequentially one layer at a time. This type of process imposes limitations on the shapes and the materials that can be printed. For example, overhanging structures need additional supports during printing, and soft or elastic materials are difficult to print since they deform as new layers are added. While casting can be used instead to create certain elastic parts, design freedom is limited because cavities or tubes are difficult to unmold. Here we use a volumetric 3D printing method based on tomography, where the entire volume of a photopolymerizable resin is solidified at the same time. We demonstrate very rapid (<30 sec) printing of a variety of complex structures with acrylates and silicones.

Bio :

Christophe Moser is currently associate professor of Optics in the Microengineering department at EPFL. He obtained his PhD at the California Institute of Technology in optical information processing in 2000. He co-founded and was the CEO of Ondax Inc (acquired by Coherent Inc.), Monrovia California for 10 years before joining EPFL in 2010. His interests are additive manufacturing via volumetric 3D printing with light, ultra-compact endoscopy through multimode fibers and retinal imaging. He co-founded Composyt light lab in the field of head worn displays in 2014 (acquired by Intel Corp). He is the author and co-author of 70 peer reviewed publications and over 40 patents.