Turning a round ball??? - Woodworking Talk - Woodworkers Forum
 
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post #1 of 7 Old 01-21-2012, 02:42 AM Thread Starter
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Turning a round ball???

Has anyone here turned one??? If so do you have photos??? Did you use a special jig?? I thought I remembered years ago someone made a homemade jig for this??? Or do you need to buy a special tool??? How do you determine the correct size to turn??? Thanks in advance.

John T.
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post #2 of 7 Old 01-21-2012, 03:34 AM
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Search Utube. Bound to be a video.
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post #3 of 7 Old 01-21-2012, 07:08 AM
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post #4 of 7 Old 01-21-2012, 07:12 AM
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Google sphere turning and sphere turning jigs.
You tube does have lots of demos on turning balls or spheres. I use the flip the axis method. Turn a cylinder. Make marks out from the center that are exactly the same width as the cylinder diameter. Part down leaving a moderately thick tenon for support.
Round this over to as close to a ball shape as you can. draw a line around the center. remove this and cut the tenons off. Mount the ball between cup chucks so the line is between centers. Turn away the shadow created by out of round wood. Then I rotate the ball to 2 new centers about 45 degrees from the others and do the same thing. If your really good it would be round now but in reality it takes me a few more off center rotations to get it round.
Making a cup chuck for the drive side is easy. Making one for the tailstock end takes a little creativity depending on which live center you have.
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post #6 of 7 Old 01-21-2012, 07:47 AM
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Made couple of jigs couple of jigs found in David Springett’s book Adventures in Woodturning several years ago. Found just using spindle and skew with prong and live centers easier. Made a jig attached to face plate to deal with nub ends. Yes, wasted lot of wood before getting good results.

Just have fun with it.
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post #7 of 7 Old 01-21-2012, 09:56 AM Thread Starter
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Wow this sounds abit trickier than I thought. I will check out utube. Watching it helps alot. Thanks guys.

John T.
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