Edit 24/11/2022

I've printed the model in ASA now so it should have a better resistance to heat. However, winter as come and the temperatures are not enough to properly test it. 

Do not print in PLA

Works best for thick sunglasses (6mm clearance)

I really enjoyed moacmoa design, first I printed it in PLA but it quickly deformed, and then I moved to PETG with better results. But even when printing in PETG at 100%, with time it deformed as well. 

I increased the clip width to try to achieve even better results and to have a sturdier piece that doesn't deform easily. 

The pieces have a gap of 6mm for the glasses, keep this in mind for glasses with slim frame arms.

↳ Heat deflection can happen with time (PETG for both colours)

↳ 20mm version (left, black, original), 25mm version (right, red)

Printing

I don't recommend printing this in PLA, please use PETG or other material with high heat deflection temperature.

For this piece, I use 100% infill in order to have minimum part deflection due to temperature.

I recommend using 3 perimeters to cut printing time.

Since the first couple of layers have a steep angle it creates a bit of an overhang, a bit of support (support on the build plate only) is advised, it will only add 1 minute to the build time and the part will come out perfect.

Credits

Sunglasses Car Sun Visor Clip by moacmoa