Ok I've been surfing trough the internet for quite some time now trying to find a solution to my problem but nothing similair pops up. This is my problem: http://i40.tinypic.com/295dc9f.png For some peculiar reason the structure tends to bend over to the left. I have no idea why and i've tried to change te thickness and strength of the center Link/2d Spar without any luck. The results show a force acting in the x direction in the top and bottom as if some kind of torque is applied.. When I remove the center piece the results do not include the erroneous force/deformation and it just streches while keeping the horizontal bar absolutely horizontal. Does anybody know why this deformation is not symmetric ?