Design for 3D printing of multi-material components for a robotic exoskeleton steering device

Abstract

Additive manufacturing (AM) has grown considerably in recent years in many fields: aeronautics, automotive, aerospace, food and also an important part in the medical sector [1]. Indeed, producing parts with excellent dimensional control, low weight and multi materials, while having few limits regarding its level of complexity (geometry), is a major advantage compared to traditional processes (drilling, milling, turning, etc.). Therefore, 3D printing is today one of the most suitable technologies to meet the needs of health professionals, thanks to the possibility of customisation and reproducibility of the manufactured parts. In this context, this article develops and analyses the multi-material manufacturing via additive manufacturing of a component of a lower limb robotic exoskeleton incorporating a force sensor. In details, it contains the approaches used, the proposed solutions and their validation and, finally, a life cycle assessment of the product