Saw an advertisement on Facebook for these sunglasses that used polarizing lenses from a camera, thought I can make that!

This model uses no hardware and only requires a non-adhesive linear polarizing filter for the lenses. The hinges have a hole big enough for a piece of filament to be used as a pin, just melt one end flat, feed it through the hinge, trim, then melt and flatten the other end. Likewise, the nose rest has a hole or a piece of filament bent in a ‘U’ shape to attach to the hole on part C- Lock Ring.

For the lenses, use the cut guide to cut out 4 lenes and note the direction of the polarization. Glue one lens to the inside of the frame, the lens should fit in a grove located right at the front inside the frame. Glue the other lens to Part B - Slide Ring making sure to line up the polarization of the lenses before gluing in place. Next, before sliding Part B into the frame, make sure you've removed the inbuilt support tabs in the frame. Then slide Part B in and place the Part C - Locking Ring over the top and carefully glue in place making sure that Part B can still rotate.

Part E - the Hinges are glued in place on the sides of the frame and the arms + nose rest are attached as mentioned earlier with bits of filament. 

PRINT SETTINGS FOR 0.4 NOZZLE:

• 0.2 layer height
• Only supports on part E - Hinge
• No brim (if your having adhesion problems, you could try a brim but since all the parts are thin, be careful when removing it)
• 0.42 line with
• Infill 25%
• 3 wall loops

THINGS TO CONSIDER.

1. IDK if cheap polarizing film will protect your eyes from UV damage, I'm not a doctor so look at the sun at your own risk.
2. Most filaments will melt if left in a hot environment (obviously) so I'd recommend using ASA, ABS, or whichever high temp filament you prefer.
3. Careful with using superglue to attach parts, the fumes WILL HURT YOUR EYES. leave a lot of time for the glue to dry before trying on.
4. this is my first model, be nice :)