Turning

Subject:
Re: Chuck unscrewing from shaft

jake niedling
With the lathe running only in the forward direction, the chuck will tighten up on the drive spindle. Now if you have a large bowl, then the mass of the bowl will want to unscrew the chuck, if the lathe slows down faster than the mass of the bowl. Usually seating the chuck properly against the headstock threads, creates enough friction to eliminate this problem. I don't know if you use a nylon/plastic washer between the chuck and the drive spindle threads, but you might want to consider not using it. Just some thoughts for you to consider.

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