Persephone VR
By Jade Vincent
The Problem
- Industry leading VR hardware and software is closed source and often hostile to developers
- Popular Headsets such as the Oculus Quest have very low availability outside of western nations
Goals
- Develop a hardware and software ecosystem of similar quality to the Oculus headsets while remaining open source
- Keep prices as low as possible to increase accessibility
- allow people to customize hardware to fit their price range
Target Users
- Makers who want a highly accessible piece of technology they can tinker with
- General consumers that want more a affordable and customizable VR experience
Open Source Initiatives
Hades VR
By LiquidCGS
Slime VR
By The Slime VR Team
Relativity VR
By Maxim Perumal and the Relativity VR team
Previous Versions
MK1
An early prototype to get acquainted with VR tech and practice 3d modeling skills.
MK3
MK2
Another early prototype using laser cut wood for rapid prototyping with lens adjustment and computer vision.
The first attempt at a final consumer product although it ended up lacking polish and many lessons learned from it were brought into MK4
MK3 Pitfalls
Uncomfortable plastic face socket
Adjustment requires screw driver
Uncomfortable and clunky adjustment
Hard to modify electronics
MK4 Changes
High performance and cheaper micro controller
Easy ratcheting adjustment
Lower profile screen
Soft TPU rubber pads
Modular electronics mounting
Quick lens adjustment
Thermoplastic polyurethane (TPU)
- Provides flexible and soft 3d prints for increased comfort
- Slightly harder to 3d print at high quality
- Extremely durable
- Used in headset face padding
Ratchet Adjustment
- A ratchet that automatically unlocks through the dial being counter rotated
- Offers extremely simple and fast adjustment
- Significantly more durable than previous solutions
Modular Electronics
- Easily removable electronics for easy modification
- Fully screw free assembly
- Extremely low cost at $6 for 3DOF tracking, $50 for low resolution screen, and $50 for 6DOF tracking
Challenges
- Ribbon cable on screen getting torn making the headset non functional
- Poor print quality with TPU
- Creating assembly methods that don't require screws
Next Steps
- Source replacement screens
- Create better screen and screen driver housings to prevent damage
- Eliminate the need for supports while 3d printing
- Implement polish such and dust gasket for screen and more lens adjustment