Quote Originally Posted by Clockguy View Post
I watched that video a half dozen times and, for the life of me, I still cannot figure out what causes that third barrel stay to "bounce" up from the clamp on the bottom??
It almost seems like there is a sharp blast of air that "launches" it upwards but that is more a fantastic guess than a rational reason .....
I don't think it's so much bouncing as being adjusted by hand - but in time lapse, though we see the worker zipping around we don't see all the movements as they happen.