I found with my latest design that when you move the magnet in a Pseudo Solid fashion from one end of the work bars to the opposite end that the magnetic field switches from pulling on the bottom assembly and resisting the movement of the work bars apex to the end of the bottom assembly, to helping move the work bars apex to the end of the bottom assembly. I need an animation done so badly so people can see the operation. I there anyone out there willing do this so people will understand the operation?[/size]Thanks, Butch LaFonteSee attached