Summary

Inspired by the ServoCity ZTE Speed Phone Mount, but one piece beefed up.

Default files are for MotoE4 phone. Use Customizer and enter your phone dimensions to make a mount for your phone brand.

Can mount a phone to an FTC robot using the center hole pattern to Actobotics (diagonal holes) or to goBILDA or Tetrix (on-axis hole slots). Extended hole patterns for Actobotics, goBILDA, and Tetrix are available in Customizer: sample .stl files for all 3 formats are provided for the Moto E4.

Can also leave gaps for side phone buttons or ports in different places using Customizer.

Prints without support if your printer can handle short bridges.

The clip-based design holds the phone even with the open end down as shown in the pix. In a rough-and-tumble environment, it may be preferable to use the mount sideways or on its back so the clips aren't holding the full weight of the phone.

Customizer seems to have trouble with the version with the curvy clips (06Mega) but works with the angled clips (05Mega). If you want curvy clips, download the 06Mega scad file, change the customized parameters in the code, and render it locally.