Note: the phone warms up pretty good upon intensive 3D use, but the original design does not help either in this aspect.
How do you upload PDFs here?
Until I figure out, here are the JPGs:
The lenses holder, the original size is an A3:
Using a ticker cardboard, I only used the middle fold.
This is the second page (I used A3 paper to print):
An this is the third page (A3 too):