I liked the mesh design idea and decided to make a modification that would be customizer friendly. I ended up changing quite a few lines of code in order to understand it completely, but in the end it is basically the same design.
I printed it in fast mode so the spheres are not very smooth in the picture.
The design works very well, the size of the mesh you can print is limited to the size of your print bed. I didn't actually do the next step of some for loops to fill up the bed with the mesh, but that should be very easy to do.
I just realized that the balls will snap into and out of the socket, so it is possible to make an infinite mesh. This will probably depend on the settings and the plastic used, I used PLA.