what I ve gonna do with it?...any idea?....
Jan,
Truly magnificent work! This model is a milestone in card modeling history!
I like your idea for building the structure from cubes. Should be simple and strong.
About the torsion problem - it's not clear to me what is causing it. So, below are three ideas for dealing with the problem, depending on the cause. I hope these ideas might be useful in helping you find a solution.
(1) Stacking Alignment
Are the cubes attached together so that they are "stacked" one directly on top of another? If so, then there are vertical seams through the entire structure. Is the torsion happening along one (or more) of these seams? If that is true, then "staggering" the cubes (so each cube "straddles" the two below it), will break up the vertical seams, and maybe eliminate the twisting
This is what I mean:
Below, "|------|" represents a cube.
If you are stacking your cubes like this:
|------||------||------||------|
|------||------||------||------|
Try this instead (like bricks in a wall):
|------||------||------||------|
|--||------||------||------||------|
(2) Paper Grain
Is the twisting being caused by the paper curling after becoming damp from glue? When paper curls or warps from dampness, it will usually curl
across the grain of the paper. If the torsion is caused by all the cubes curling in the same direction, rotating half or all of them 90 degrees
on the printed paper might eliminate or minimize the problem by changing the direction of the curl.
Maybe you could alternate the cubes so every other cube has the paper grain in a 90 degree different direction from its neighbors on each side, above, and below.
(3) Internal braces
Attach an internal brace across one or more sides of each cube to make the cubes more stiff. I design 1/87 scale architectural models. At this scale, some models are like big empty boxes, so twisting or warping can be a problem. I prevent it by using a simple standard brace attached to the inside of my walls. The braces are very rigid because the cross-section of the base of the brace has the form of a triangle. This prevents the brace from twisting. These braces work well for me. I like this solution because the brace is very stiff, easy to make, and it doesn't require some additional material (e.g. wood). I will attach a JPG below.
Good luck! 