While building my rope bridge, I set a ball joint to every connecting cylinder of the ropes.
But now I've decided to be a little more realistic, and adjust the masses properly. The rope cylinders have a low mass (rope is not heavy), calculated by density and their volume. The planks have a mass of about 2 kilos, or about 5 pounds.
The problem is, the ropes do not seem to be able to handle that much tension. The bridge just falls into the abyss and the cylinders go crazy trying to hold it back.
In the real world, the masses are OK, so it's the joints that are having a problem.
The way I see it, a joint should be able to handle so much force, in that case the weight of the planks. And it shouldn't "expand", unless I want it to. It should stay solidly in place.
Now the joint stiffness has no effect on that. Lumooja told me the joint strength doesn't work, and to use forces to simulate it. So, what am I doing wrong here? There seems to be a physics parameter I don't have control on, that is, the strength of the joints.