I always liked the idea of box sat or the cube mods, but, for me, those two were not the thing I was looking for. Basically, what I wanted was an easier system to make cube walls for a satellite. Not only that, but having internal nodes to attach different parts to it would be nice. Unfortunately, no one did it, that the case until I saw a video on youtube and the person (Felborn aka bob fitch) had done something amazing and that was, adding few nodes to an existing stock part!
That was when I decided to go for this idea, now, here you have it, a mod that adds only two parts, one as the satellite frame with built in electric charge and SAS, and one as the wall to cover it up and make it a real cube. The frame has 26 sets of internal nodes that are attachable on every 6 directions.
Using B9 Part Switch as an optional mod side by side this mod, you will get a nice little addition in your GUI's menu to toggle those nodes on/off for ease of access. Also, the wall is designed so that when it snap attached to a node, it would still have another stack node toward the outside, making it easier to attach engines to the wall if need to.
B9PartSwitch
Forum Post : http://forum.kerbalspaceprogram.com/index.php?/topic/152182-jsat/