I created my own camera mount and wanted to share my scad file.

My design is for M5x20 screws with nuts. In case you require different screw/nut sizes, simply adapt the values in the .scad file
 

HINT: The connecting part between the arm and the printer bends after some time or when the web cam is too heavy.  HexDriver created a remix which fixes this issue: [https://www.prusaprinters.org/prints/142759-prusa-mini-camera-mount-remixed](https://www.prusaprinters.org/prints/142759-prusa-mini-camera-mount-remixed) . Additionally HexDriver  needed a different camera fixation part, so if my camera fixation part does not fit your camera maybe the one from the remix fits better for you.