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VR Goggles - Adjustable Focal Length

by Xion, published

VR Goggles - Adjustable Focal Length by Xion Oct 2, 2015
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1823Views 285Downloads Found in Mobile Phone

Summary

Adjustable focal length VR Goggles. Occulus "Thrift".

Required:

  • 25mm Perspex lenses (Cardboard V1).
  • 2 x 3mm bolts
  • Hot Glue

Simply print the goggles and adjust the hood using 2 x 3mm bolts to friction fit the hood to the desired focal length.

Use hot glue to spot attach the lenses to the faceplate.

Edited 30th October, 2015

  • Updated the faceplate and mask to have a higher nose bridge to avoid pinching

Print Settings

Rafts:

No

Supports:

No

Resolution:

0.2mm

Infill:

20%


Notes:

If you've got bridging setup correctly you should be able to print the mask without requiring any supports. The one pictured here had no supports.

Post-Printing

Filing

Some filing may be necessary to get the face plate to fit inside the mask, the tolerances are pretty tight but makes a very nice firm fit with a little bit of filing.

Hot Glue

Currently the lenses are hot glued to the opposite side of the face mask. I need to adjust the faceplate to accept different sized lenses.

You may also want to put a bead of hot glue down across the front of the mask and hood in order to stop any scratching of your phone surface. The dried hot glue makes a nice rubbery texture which should stop any movement and also provide a barrier to scratching your phone.

How I Designed This

Designed using Sketchup based on Google Cardboard.

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It seems to work fine, it doesn't take much to adjust it so your eyes can focus nicely on the screen without causing too much eye strain. However I found I needed some foam either over the nose-bridge or across the mask to stop the weight of the mask is resting on your nose.

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