Hinge Joint with no displacement, strict rotation limits

Hi all,

I need to create a kind of hinge joint that is

• using springiness( for rotation),

• allows 0 displacement relative to it's anchor

• has strict axis rotation limits (the joint's rotation must not exceed these limits at any given time).

I tried hinge joint, but when dragging on of the connected rigidbodies a displacement appears relative to the anchor.

I tried configurable joint, set it up as a hinge joint with springiness,set the projection mode to position and using a projectionDistance of 0.05 the displacement problem disappears, but I can't limit the rotation of the joint for a given angle (ex 45 degrees), when forced to a wall I can make it do a 360 rotation.

How can I make this strange joint? It seems to me that none of the joint available in Unity is capable of this.

Thanks in advance!