Anti grav for the player working on it is not in the globals for lua script, there for there is no way to call the association for it.
Now the other animated stuff:
What I sent you in the code box was not a script, but the fpe contents for the entity. Hopefully that clears that up and this should work for all your looped animations.
Are the FPE files properly set. They believe it or not have to be static for the auto loop to work. if they are dynamic, then you will have to construct a script to play the animations.
I don't have these bond entities so I can not pre test this out for you.
So for just a looping animation in reloaded with no interaction from player.
Make sure that the anim0 = in the fpe file has all the frames.
Make sure it is static.
Make sure no scripts but the defaults are there.
clear dbo and bin files for those objects and retest to see if it works.