Simmechanics - Universal Joint

I need to model a parallel link robot with few universal joints. But I get the following error.

"Error originates in Mechanical block robot1/Universal2. The coordinate systems attached to this joint must lie on the prismatic axis (for 1 axis) or in the plane of the prismatic axes (for 2 axes). If joint has no prismatic axes, the attached coordinate systems must be collocated, within tolerances."

I tried changing the coordinate systems, rotation axis, etc.. But they didn't work. How can I overcome this? Help me.

Answer 1

[Anitha]

might be helpful..

http://stresstensor.com/Simulation/SimMechanicsFAQ.htm

Answer 2

[tianle Wang]

where can i get 'sm_ik_trajectory_model.slx'!!!