generic6DOFjoint "too soft"

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:bust_in_silhouette: Asked By Asoth

Hello,
I want to fully lock a body to another one
I am cannot find a way to make a joint with the genreic6DOF hard enough.
I put 0 deg min and 0 deg max in the desired enabled angular and the joint still “bend”.
I tinkered the others parameters but apart from making everything exploding , it doesn’ t help.
surprisingly , hinge joint and twist joints with proper restriction provide enough stiffness but I cannot use them for this particular case.
can someone help me on this ? thanks