Kangaroo_tesegrity structure: elongation and strain

Hallo Daniel,

I have tried the tensegrity-structure example file and noticed the struts getting shorter; I know theoretically it somehow happen to compression parts. But the strain about 30 cm doesn’t look realistic!

(To get 1 mm deformation from a solid steel volume (1 cm x 1cm x 1 meter) we need almost 2100 KN.)

I was thinking it could be caused by stiffness, so I put higher stiffness for struts in order to minimum its strain, but by 16.000 units the whole structure 'explored'!

Even I tried to vary the stiffness of struts and make it 5-10 times than cables, the strain on struts are still there.

But as I said, the deformation is still too much and not realistic...

So here are the questions:

- What dose those units for stiffness and 'gravity' really means? And:

- How we simulate a forced element (in my case struts) to obtain the realistic strain?