About this 3D model

Fully parametric outlet shim. The wiring in my house is substandard to say the least. Outlet boxes are not flush with drywall and the drywall surrounding the boxes are over-cut. All these problems lead to loose, shaky, crooked, and non-flush outlets. I've designed this to be a shim that acts simply by extending the box on top or bottom to give a sturdy and flush mount for the outlet. It's my first attempt at an OpenSCAD design. It was a quick design so let me know if there is anything that needs clarified or fixed. The .STL is just an example. Please use Customizer or the .SCAD file to make the necessary changes for a print.