hi guys,

I have some problems with making a symmetric form..

You see that the displacement is unrealisticly asymmetric so the model has some symmetric issues.

When I use the evalution tool symmetry on the assy i got this results

So the top and de base are asymmetric..

But when in open the parts themselves and then when i run a symmetry check( im using the same reference plane) both part are labelled symmetric..

Any ideas?

Well, it would be difficult to troubleshoot over the internet. But you could be analyzing 1/4 of this model. Look at it from the top and draw a plus-sign through the two planes of symmetry. Optionally, you could split the bodies using the front and right planes if the jack is drawn symmetrically. Then enforce symmetry boundary conditions on the cut planes, apply 1/4 of your load. Voila! Your problem should be solved without even knowing what it was

You can also do some things like put 1 g acceleration on the part to verify that the reaction equals the part weight.