how to make non elastic hinge joint in 2d mode

Questions & Answers
1

I am having troubles creating objects that use 2d hinge joint, in manual it say that this can be used to create various door-like mechanisms, but in fact it’s nearly unusable because the hinge join is somewhat elastic, that means, when you have 2 objects connected, and 1 object receive some kind of a force, it will move as a whole, not respecting the hinge joint so even the anchor that is meant to be static, will change its position and later on, the engine will start quickly moving the object in direction of hinge joint back where it should be.

If you for example try to create a chain, it will look more like a rope, as its parts will get disconnected from each other and then they will get back, pretty much like if you made it out of the rubber.

2

I had the same problem and here is my solution:

Duplicate the item (A) with hinge joint and name it to (B).

Remove sprite from A. Remove all the physics components (rigidbody, hingejoint, collider,etc) from B.

Add a script to B and update it’s rotation from A.