Collapsible Smartphone VR Goggles by astfaellergerald

Last crawled date: 3 years, 1 month ago

This is my take on the Google Cardboard idea – a frame with lenses that very inexpensively turns your phone into a pair of VR goggles, like a very low budget Oculus Rift. Google Cardboard is very bulky though, and makes it hard to use the touchscreen while the phone is inside. It's also impractical to transport. So I made this.
Features:
collapsible – it's only slightly larger than a Galaxy Note 2 when collapsed
add a magnet (diameter 20mm or less) and a washer (diameter 20mm) for a magnetic switch (to interact with apps via the phone's magnetometer) like the one that Google Cardboard offers
uses inexpensive Google Cardboard lenses (e.g. from eBay, see below)
lenses can be focused individually
attachment points for a head strap
compatible with Google Cardboard apps
frame can be adjusted to six different phone sizes (1 to 6) – a LG G2 sits at size 3, a Galaxy Note 2 at size 5
display stays accessible (mostly; i wouldn't type a text on it, but selecting things works fine)
What you need to print:
the frame (...-scr-mag.stl)
four arms (...-arm.stl)
two lens holders (...-ring.stl)
(optional) one holder for the magnetic switch (...-magnet.stl)
What you need to buy:
Lenses: Google Cardboard compatible biconvex lenses, diameter 25mm, focal length 45mm (search on e.g. eBay)
(optional) any flat magnet with a diameter of 20mm or less
(optional) a washer or flat disc of ferromagnetic material with a diameter of 20mm
Test prints were done using ABS filament. You may have to rescale when printing with PLA to account for shrinking with ABS.
Notes:
One of the focusing screw threads turns clockwise, the other counter-clockwise. I might make both go the same way in a future revision.