Once the device is fixed to a support you can adjust the position of the camera as you like.

There is no need for support when printing these parts. I've used 0.15 to get a decent precision for the threads.

Screws are printed by halves (clampBolt.stl and clampBolt(1).stl, …) so that the layer orientation does not make the threads weak. You need not glue the halves together, just align them and screw in.

You can replace the “topRod.stl” with another “GoproMount.stl”.

You can also replace “GoproMount.stl” with a custom parts to hold something else than a Gopro or compatible cam.