Parametric Wood Stand Box

A simple supportless parametric box that hangs on the side of a shelf. I have designed this in openSCAD. The SCAD file is included. Also, to avoid support of the hanger, please print if upside down.

The dimensions of the box I use it is:
10cm X-axis
3cm Y-axis
14cm Z-axis

PS: I know this design is simple. I've picked up SCAD a couple of days before (and the whole idea of 3d printing ~ one year ago), so, IF you can spare some comment to help me improve myself, it will be more than welcome. Thank you