Hello everyone
I'm new here. I found this plugin yesterday and try to use it to simulate the equilibrium of a wooden product I'm designing.
The structure is in wood, and it supports heavy objects by their side with big screws (so they are not resting on the wood structure). If I group all of these or make a component, it feels like the mass of these heavy objects is lost, and so playing the simulation gives very strange (and false ) results, as the structure doesn't fall on the ground as it should.

The fact is I don't understand how to keep the different masses AND attach the objects between them. I tried with the fixed joint but it fixes everything and nothing at all moves

Could you help me please ?
Thanks