Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4323390.

This is a phone mounting solution to allow for better active track with Ronin S gimbal.

Mounting a phone on a camera hot shoe raised the phone pretty high and it was a nightmare to balance. This allows to bring the phone much lower towards the camera and aligns the phone camera to the actual camera more nicely. Also since it's attached to the Ronin then you are able to remove the camera much easier than if you had the phone mounted on the camera.

The screw I used to mount the print was from the Ronin S kit. The same one the side plate is mounted with. Seems like I had a couple of extras.

The nut is meant to screw on before you screw on your phone mount to adjust the final angle and tighten the phone mount.

Just use any phone mount that has a thread and you're all set.