Simple Customizable Hinge

Just a simple hinge I plan on using for my printer enclosure.
This was inspired by http://www.thingiverse.com/thing:47591, but I wrote the thing completely from scratch in OpenSCAD.

OK, I have successfully printed this a few times with different sizes (pictures included).

NOTE: The size of the "knuckle" of the hinge is currently directly related to how thick the leaf is (2X), which seems to do pretty well. If it seems like a problem, I can add more parameters to the customizer in order to allow that to vary as well.