These STL files let me prop up my Samsung Galaxy S7 Edge so I can record videos for Youtube. There are 3 files:

• "Phone Holder - No Hole". This allows you to make the basic holder without the camera mount hole/threading. I suggest adjusting the height of the object in your slicer so it doesn't tip over very easily (1mm is just too thin). It probably needs to be 3+mm, but shouldn't need to be taller than 8mm.
• "Phone Holder to Camera Mount Adapter". This is the basic camera mount adapter.
• "Phone Holder to Camera Mount Adapter - Secured". This is the camera mount adapter with plastic that goes all around the phone so it can't fall out.

If you want, you can view the Youtube video I made about how I designed these objects: https://youtu.be/abupD1UTeZI. The threading I used in Fusion 360 for the camera mount hole was the "Ansi Unified Screw Thread size 0.25 in, designation 1/4-20 UNC, class 3B" thread. One thing with the threading is that you want it to come after any fillets or chamfers or Fusion 360 won't generate the threads and also won't warn you that it didn't generate them.

If you find this for sale online, then it is an unauthorized reproduction, since I have not given anyone permission to sell this. I will update this listing if I do give permission.

Here's the incomplete list of pioneers, inventors, and ancestors who made this design possible:
* The inventors of the lean design methodology (and their sources). I used their philosophy of "fail fast" to make the object within 2 hours from initial conception to final version.
* Josef Prusa and all the people who came before who made 3D printers fairly cheap, reliable, easy to assemble, and bug free.
* Others known and unknown who taught or showed me things I used to make the design.
* Everyone who came before that caused me to be born the way I am, when I was, and in the technologically advanced society I'm in.