I removed the little remnant of the shaft remaining in the chuck and started sanding again. Suddenly the whole chuck, including the taper, feel right off! I guess the force from the spinning extension loosened the taper enough so it just slipped right down. We tapped it back in place, and it seems fine, but that's one experience I'm not going to repeat.
Wednesday, September 15, 2010
Well, I got away lucky, this time. I was trying to sand the inside of a pretty deep box with my inflatable ball sander but kept hitting the opening on the chuck of the drill press and taking off little chunks of wood. I didn't have a flex shaft, but I did have a 12" extension, so I attached the ball to the end of the extension, chucked it into the drill press, and started to sand. Well, either I forgot to tighten the chuck or the rotation was just too fast, and the long shaft just sheared right off and sailed across the garage. Fortunately, nothing was damaged (including me) but it was pretty scary.