Customizable Phone Tripod Mount
This is very similar to the Customizable Phone Tripod Mount by samkass but is not a direct remix. My tripod mounting plate is rectangular, while Sam's model is square -- once I reduced the size of his model to fit my locking mechanism, there was much more side-to-side play than I was comfortable with. So, I made this model (also in OpenSCAD) to fit a rectangular plate. The locking block of this model fits both tripods I have, which I assumed was a standard size, perhaps not. The only measurement you're likely to need to change is the separation of the holders for your particular phone.