Customizable round hex pattern

I needed a round lid with a hex pattern in it. I have previously published a parametric square pattern that i coded in scad. You can find it here: http://www.thingiverse.com/thing:476127. Rather than just dumping the square pattern in an stl file and cutting it in FreeCAD, I decided to code a new version of the pattern with a nice round border.

Open the Customizer and enter your specific parameters to create your own round pattern.

For whatever reason the Thingiverse Customizer often fails