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Ball turning jig

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  • Ball turning jig

    Hi all.
    I have just made the Steve Bedairs type ball turning device, but i am having to scratch my head over the setting it up .
    If any one has one of these can you tell me the full set up info please, i need to know the tool post position in relation to the size of the ball to make ? thanks in addvance.


  • #2
    To generate a true spere, any ball turning device needs to meet these parameters:
    The tool tip is on spindle center.
    The radius is set to the diameter required; and/or the tool arrives at the final radius via articulation, usually by screw.

    If a close approximation is OK, use touch off. Turn the piece to req'd OD. Face the end. Move the tool towards the chuck the req'd OD, score a line.
    Set the ball turner pivot at spindle center, and mid-point of the length by swinging the tool from face to score line. Lock the carriage.
    Back off the cross slide and advance, whittling the ends off first.


    • #3
      Thanks for the reply, i did in fact find a good write up on you tube this morning on the jig so all fixed now.
      Thanks again. Chubbs.