Honeycomb Generator creates you a geometrically correct array of honeycomb cells, from a zero vertex starting point. It uses several geometry-nodegroups within a sophisticated modifier stack.
All measurements and adjustable parameters are according to and within the boundaries of reallife sized Honeycombs. Of course you can override the mesh size by an intergrated scaling option.
The generator was developed during production of my cinematic HONEYCOMB, which gives you a good example of how it can be used.