This design aims to provide a french cleat for mounting stuff (in my case small speakers) to a shelving unit.
If you wish to change the design in the openscad files, you'll need the following screw holes library:
https://www.thingiverse.com/thing:6564583
The first photo shows how I currently use it (=the stl files).
Older photos show how my first iteration went. This first approach may still work depending on your weight balance.
The author marked this model as their own original creation.
