A 30 degree wedge for a dome camera, when mounted to a wall to change angle a bit more.  The dome camera base needs to be about 110mm in diameter, and holes are 120 degrees apart. I printed without support in ABS, but other should work based on your application. 

I used 13% Gyroid infill seemed to be quite sturdy. 

I used threaded inserts and M3x8 screw to attach my camera on to the wedge. The order of assembly. 

1. mount wedge to wall or surface. 
2. mount camera ring and body to wedge
3. mount camera dome cover on everything.