Simmechanics multibody two 6DOF with n link

Hi all,

I have one system composed by one body 6-DOF, n link, and at the end another body of 6-DOF, I must simulate.

I alredy have simulated the sys composed by the first 6-DOF and the n-links, but if I connect the last with the weld body when I attach the last 6-DOF body it works fine (the whole sys is one chain). I need to apply force on the last one. When I connect this with the bushing block it doesn't work (because the last is not attached to the rest of chain)

How I simulate the whole sys??

Thanks in advance Elisabetta

[N/A]

Can you upload the model?