Customizable Filament Spool support wall mount

When I came to hang my filament spools on the wall, I had to modified and saved many variations of my first design to fit all the differents filament spools I have. I heard about Thingiverse Customizer and having to learn Openscad sounds like a journey... So let's jumpstart! 3 evenings of learning later, here is my first customizable thing! :)

V1: add a longer end at the bottom of the support, to handle Makerbot 0,2kg PLA Filament Spool