I want child parts like fingers to stay as it was positioned on the palm and keep the angle between them, but with concentric mate and coincident mate, fingers rotate automatically as palm changes the angle.
I attached two pictures as an example. Palm down and up. Fingers.. in another way, stays the same relevant to the front plane, but I want to keep the palm and finger angles same. However, I can't simply put the angle limit, because these fingers also have to bend and move like fingers.. so I have advanced angle limit, but locking or standard angle mating is not an option.