Four way hinge grid

This was a thought exercise in making super flexible mechanical hinge grid. This is not really useful in the current state.
I got this idea in my head and decided to print it out to see how it would go.

This is does do
* demonstrates Full range of motion in on 4 points
* uses pure mechanical hinges and ball joints to achieve a very flexible thing :)

The known issues
* the connection bars are very fragile and can break
* resizing the grid requires hard coded values
* resizing t