I was sitting there at my desk one day, minding my own business and being quite productive when along came my co-worker who excitedly announced (or came to the sudden realization) that "Hey, 3E8! You design stuff! I ripped these lenses out of an old Sony projector - make them into magnifying glasses!"... and I turned my head slowly, looking slightly annoyed, and said "OK!"... (typical office drama, amiright?)
24 hrs later, I printed it out and all is right with the world again. The dimensions of the lense are:
85.9mm - diameter
6mm - convex protrusion side 1
4mm - edge thickness
10mm - convex protrusion side 2
I've rendered two sets - one for Hi-resolution printers (that can print with .1mm accuracy or better) and the other for Lo-resolution printers (such as my personal Flashforge that has a resolution of only .3mm)
Print the version that best fits your printer. Then, slide the frame around the lens (making sure it rests between the channels); screw the handle onto the frame and you're good to go!
If you found this useful, it would bring me great joy to see your work - so be sure to share. :)
Or, better yet, please feel free to dump a bitcoin or two here (I'm trying to collect as many as I can before the apocalypse):
... include a note to the effect of "Hi 3E8, thanks for the magnifying glass thing... my life is infinitely better on account of it and please accept this small handful of bitcoins in gratitude".
You're welcome! (in advance) :D
Also, feel free to peruse my other submissions which are almost as varied as they are many:
March 18th, 2018 update: Added a skirted low res version because I found my Flashforge simply couldn't handle the very narrow footprint of the original model.
March 26th, 2018 update: Added a long-handled version (MagGlassHolderSetHiRes2.stl) that has the following dimensions:
94.1mm - diameter
3.4mm - convex protrusion side 1
12.3mm - edge thickness
6mm - convex protrusion side 2
It's for the other set of lenses that come in the same projector that are made of plastic (coupled together to make one dual convex assembly)