Hello Paulo,
Cable operated joints are not easy models to get working. I modified your model significantly. In particular, I reduced the cable material Young's Modulus to make it stretch a lot and act like a spring. In a 3-step analysis, step 1 stretches the cables to the left by 10 mm to tension the system, then in step 2 and 3, the top cable returns to 4 mm left while the bottom cable continues on to 16 mm to the left, causing the joint to rotate down. The joint uses Rough contact so that the surfaces can only roll and cannot slide.
Here is the link to the Ansys 2022 R2 archive.
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