Multi directional Haxagonal Grid Generator for OpenSCAD

This is exactly the same as the remixed library however it allows the grid to work for vertical shapes as well as horizontal. 

Just call

cuboid_grid([x,y,z], hex_width, wall_width);

And the grid will render on the side with the largest area, or if the largest two are equal the grid will prefer holes aligned with the z access then y access.

I'll attach a brief summary from the remixed model.

Hexagonal grids are a nice design tool when printing. They are regularly used to maintain strength and rigidity while lowering overall weight and material usage. They are also used as a design element. As such there are numerous methods to create and add hexagonal grids to your designs. A common method is printing hexagonal infill with no top and bottom layer. This works very well in some instances (grid oriented in x-y). If your grid is rotated it is difficult (sometimes impossible) to use slicer settings and achieve the same effect. 

The attached OpenSCAD script will generate a rectangular grid of hexagons of arbitrary size and wall thickness. This can be further modified within your designs or can be used to generate a quick .stl to fill holes in an existing component with a nice hexagonal lattice.

There are several hex generators available online already. Compared to other OpenSCAD versions this script renders more quickly due to use of the excellent Belfry OpenSCAD Library. It also centers the hexagons automatically within your grid. I find this more aesthetically pleasing than some other options.