Developer and YouTuber CNCDan shows how to build a working VR headset yourself using commercially available components and 3D printing. His project is based on freely available components, open files, and a little manual skill. The goal was to create a low-cost system that is particularly suitable for racing simulations.
The headset’s housing consists entirely of 3D-printed parts that can be produced on standard FDM printers. Compatibility with HTC Vive Pro face cushions ensures comfort. Inside, two square LCD displays with a resolution of 1,440 × 1,440 pixels each are at work. This gives the system a total resolution of 2,880 × 1,440 pixels. The viewing angle can be individually adjusted via a mechanical IPD (interpupillary distance) adjustment. Inexpensive 34 mm lenses are used, which were originally intended for Google Cardboard headsets.
The electronics consist of an Arduino Pro Micro, a GY-9250 IMU sensor, and a display controller, which together enable head tracking. The software comes from the open-source project “Relativity VR,” which offers SteamVR support and is freely available on GitHub. The entire system can be connected to a PC via an HDMI and USB cable.
According to CNCDan, the total cost was less than $150 – a fraction of what commercial VR headsets cost. Most of the parts were printed in matte black PLA to reduce internal reflections. The design also allows for easy replacement of lenses and displays.
Details about the project and the associated files can be found on GitHub.
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