I recently started working on a campaign for Full Thrust and needed a map. Space based hex grid was preferred. I started hunting for one and came across an app for generating hex grids.

mkhexgrid is pretty flexible. You can output the map in several different file formats, control the number of hexs, the colour, weight and opacity of the lines and you can add user defined coordinates to each hex (or each x hexes). There are more settings and options that I've not explored yet also.