Glasses/Frame to work with a VR headset

thingiverse

I got a cheap VR headset - I needed reading glasses to use it, but it wasn't designed to be worn with glasses, so I got a very cheap pair of reading glasses, took out the lenses and made a frame for them that would fit in side the VR headset. Also an experiment in capturing the odd shape of the commercial lens and building a curved item in FreeCAD and printing with a lot of supports. The PLA must have shrunk a bit, as the frames were just too tight, so needed a cut to get the lens in - but the design still held them well. Print Settings Printer: Reprap Prusa i3 2017 model (from kit) Rafts: Yes Supports: Yes Notes: I tried printing various ways - the one that worked was face down (nose bridge on the plate). Because the frame curves it needs support, I got bad adhesion with the thin support walls, so added a thin raft just to give the supports something to stick to. The small overhang for the groove that the lens fits in worked fine. Post-Printing Support needs removing. As I printed face down, what would usually be the visible side had all the support stuff to clean up - but as it was being fitted straight in to my VR goggles this side just faces the VR eye piece lenses, so it wasn't crucial. In practice the lenses were too tight a fit (just) so i cut the frame so it could flex more around the lens - the plastic is springy and the groove deep enough that this works fine. How I Designed This Lots of fun with Gimp, Inkscape, FreeCAD and Cura. I popped the lenses out of the frame (cheap reading glasses from the £1 shop), took a photo of one against a plain background on my phone, sent it via google photos/drive to my desktop into Gimp. In Gimp I selected cut out the background, flood-filled the lens to make a silhouette, cut and pasted this into a new inkscape document, did a bitmap trace, simplified and tidied it a bit, scaled it then save it. I imported the svg into FreeCAD as 'geometry', extruded it as a solid... did various boolean things to make the frames! In Cura I played around until it looked like it would need least support and best chance of sticking (front down, with a raft).