Thanks guys!
But if i create another chain_box not works equal. The same if i import this into the game or erase the actual and create other :S .
I think this is for the UniqueID that appears "7". And only works on that.
How i can create all the chain_boxes i want and this one create the size of the wire depending of the chain_box like now and some instace number that say "electric" , and 1 for put the electricty and 0 to normal. I thought create a rope/wire was more easy .
Maybe there is any other rope example more easy to use that can be capable to create all that you want of any size,etc.. ? I looked in the forums but the only that works good was this one by R0J0hound .
Edit: Also how can i erase the wire colisions? i want the swing and move beetween them without collision.
Edit2: Scirra, create a Rope Behaviour please!