Originally Posted by kbuzz
If I find something to encase it in, does anyone see anything wrong with using the second rare earth magnet from a hard drive as the stir bar?
Was thinking I could encase it in a food grade plastic or something...
even encased in something, I don't think you'll get a spin - I think the two will "lock" on each other through the glass - preventing the motor from spinning, unless the motor torque finally takes over and throws the magnet.
Those things are just too strong. Stir Bars - are they magnets themselves, or just rods of steel, reacting to the spinning magnets on the motor?