Fabrication of Custom Assistive Devices for VR Controllers Using FDM 3D Printing

Abstract

VR controllers, which are key devices for implementing VR technology, play a role as a mediator that connects users and VR environments by detecting users' movements. VR users come into contact with VR controllers based on their own physique and senses, and the usability of VR devices can be improved by applying custom assistive devices to existing standardized VR controllers. As part of the process to improve the usability of VR devices, the focus of this study is on improving the assembly and production process efficiency of custom assistive devices that are compatible with VR controllers. To produce prototype custom assistive devices and make modifications, a small-scale production method for multiple items is required, and 3D printing is one of the flexible production systems that satisfies this requirement. In this study, (1) tensile tests were conducted on PLA material used to make custom assistive devices for VR controllers to determine their mechanical characteristics, and (2) for the safety design of the lever applied to the VR controller and body The required cross-sectional area was identified. And (3) modifications were made to the prototypes to improve their assembly and production process efficiency. Through this research, we confirm the suitability of developing custom assistive devices for VR controllers based on FDM 3D printing and propose their practical use.