Using Rigid Body to push something out of a flapped box

Question

I have a flapped box, and I want to lift an object out of it, forcing the flaps to open as it pushes against them.

Here's my sphere failing to open the flaps:

I have seen an answer here, but building the flaps as separate objects means they won't look like they are attached to the cube part of the box.

My box flaps have armatures - one bone for each flap, as created in this tutorial.

I found another tutorial explaining how to use the "rigid bodys generator" add-on, but it hasn't been updated to work with Blender 3.x

Is there a way to use armature bones as passive hinged rigid bodies? Or is there some other way?

Answer 1

You can do the simplest thing, that is make constraints between multiple objects, and then parent your armatures bones to those objects, like such:

After adding the bone constraints, you'll need to repose your bones.

The final result looks like this: