Round shelf

This is a wall-mounted shelf to print in 2 parts:
* 1x `round_shelf_support.stl`
* 1x any of `round_shelf_150.stl` (15cm diameter) or `round_shelf_120.stl` (12cm diameter)
* both use the same support element

You can also print the drill guide to help position the support.

The support has a center hole to see through in case you made a mark on the wall to indicate the center. It also has notches on the sides to align with a horizontal line you could have made on the wall.

The source OpenSCAD file is provided. 3MF files with multiple parts to print separately are also included.

Can be used to hold small items like glasses, figurines, small flower pots, ...