SJ4000 action cam dashboard mount adapter plate

I wanted to have a rigid but adjustable dashboard mount for my SJ4000 action cam.
Lidl supermarket sells its good quality smartphone holder with suction ring for cheap.
I made this adapter plate to attach the cam to the LIDL smartphone holder.
The 3d printed plate can be clicked onto the holder 4 clipped base-plate, it is movable with the base-plate ball joint, and additionally the cam can be tilted up and down on the 3d printed plate. The overall construction is very compact, it blocks only