Adjustable Spool Mount for 4mm Aluminum or Box Frame

When my old filament spool mount snapped I opted to design a new filament spool mount for my printers: a Prusa i3 Box Frame and an Aluminum Frame. This mount was made to screw/bolt into a solid plate. This works well for the box frame, but with the aluminum mount you'll need to install a plate to the top of the frame (or somewhere nearby).

The .scad files I have included are a mix of parametric and nonparametric. The Adj Spool Mount file is parametric and you can change the variables withi