Technic Lego - Crane TableTop Gears Set

This is something that I found useful (and could not find here in Thingiverse) for Robot Buildig with Mindstorms and Technic.
A Crane Tabletop Rotation Mount. This is useful for heavy Robot / Model Frames base.

There are a number of parts attached. But, only 2 are needed: Top and Bottom.
The choices are based upon :
- Including Center mount - to link and clamp the discs together - v3 + v4.
- Thickness for lower quality printers - v3.

Have fun !