Done in FreeCAD. Direct RAM 1" Ball to GoPro Mount. The cylindrical base diameter is enlarged from the Normal ran.
New version adds Fillet around the base and cuts the sharp edges off the top. Changed orientation to lay flat instead of upright. Ball is also higher resolution so it should print rounder depending on layer size.
As a result of the way RAM clamps on their rubber ball mounts, this ball cannot be made hollow.
Version 1, 2 and 3 files deprecated, Version 5 file allows full mobility in RAM Clamps and corrects error in ball sizing. Also cleans up the ball and adds a fillet to the base for strength.