Gopro phone mount

This is a small adapter that clips into a gopro glue-on mount and allows attaching a phone holder or other device that is attached by squeezing onto a 17mm ball. Please see picture for an example.

I use this in a car, and hence I chose to print this from ABS using a 0.4mm nozzle. If printed from PLA this may still be successful but might sag over time.

Added an attachment for some common phone mount that use a 17mm ball to attach.