Hello, 1. I did not do the animatronic, I think that Danilmini, I only modify the springlock because the original was buffered, 2. That can be achieved with the phase link, it is a white point that comes out on the toolbar and it is the white point,
Example of how it works: if you connect two objects with the Phase Link they will not have a collision between the two but will continue to have collision with the other things without resorting to the total collision from the objects and that are transpasable for everything,
I hope you helped you and if you notice that the text I just told you is weird is that I am using a translator because my English is bad

how do you make the legs not collide with eachother? same for the arms?