The hand wheel that rises and lowers the blade on my table saw was very hard to turn. I slowly took the saw apart trying to diagnose the problem. I had to get the innards of the saw almost completely apart to figure out that the shaft the hand wheel was attached to needed grease. Both hand wheels operate very smoothly now. With everything apart I realized I could do a nice stop motion video of the parts going back together. This took 5 days and 5,888 frames.