I remixed the remix with the following modifications:
The model is now 129x173mm
It is now 16mm thick, to hold my choncky glasses
I made an extension to make the rail longer
I made a guide gig to help align the extension
I made four slots to fit 3M Command strips 70mmx19mm (the “L” size). I have tested this setup with my heavy glasses and they hold strong. Might have worked with fewer strips too, but better safe than sorry.
Printing instructions:
Print flat, as uploaded. No need for supports
0.6 nozzle recommended
0.3mm layer height is probably good, I printed 0.26mm just for a better look
PLA works great
Fitting instructions:
Cut away the pull lip of the Command strips. They will sit embossed in the slot.
I recommend attaching the Command strip to the holder with superglue.
Wait for the glue to dry then attach the matching Command strip
Apply to the designated surface. Hold in place for 30 seconds.
I recommend waiting 2 hours before loading with glasses (although I only waited 30 mins and it's working fine)
If you're adding the extension, use the provided alignment gig to properly distance the two sides