Absolutely over-designed projector stand.
I wanted to design a sturdy and durable projector stand that is adjustable in two axes and has high precision when adjusting the pitch axis.
This is my design, which provides high-precision adjustment through worm gears.
You need: three 606zz bearings
                   Several M3*4*5 melt nuts
                   Several M3 screws
                   A little bit of super glue

PLA is good for this model.
The specific BOM list and assembly instructions have not been uploaded yet, and will be updated as soon as possible.