3D Glasses - Blue and Red 3mm thickness

The original files had 4mm thick parts. I reduced these to 3mm and reduced the overlap on the side so there's no 1mm step. The cylinders are preserved so the holes are round.
Print as normal, I used 0.2mm and 100% infill and it came out well.

For the Red and Blue film on the lenses, I cut spare lighting gels (just firm, coloured, transparent plastic) into rough shape and taped them on the rear.
Used for a brief prop shot.