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Reply by walnutles

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Posted on A hollowed out sphere

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walnutles

13 posts in 649 days


#1 posted 02-16-2018 09:30 PM



Is the bung you used for hollowing visible in your photo?

If so and you don t mind, would you give more of an explanation on the hollowing process.

Joe

- JoeK1

Yes Joe, the bung is in the top circle on the top of the sphere. The midle line is the joint of the bung and the other two lines are to camoflage the joint.
I turned a cylininder between centres and put chucking points on bothe ends then i put one end in the chuck and brought the tail stock up to the other cucking point.
I then turned the sphere leaving bothe chucking points on the sphere and also leaving a little extra wood between the sphere and the cucking point.
Then I used a parting tool on the tail stock end and parted off the chucking point (that’s the bit that you will use as the bung and fit back in to the sphere later on keeping the same grain pattern in the wood)
Then you can use a drill bit to drill a hole in the sphere smaller than the bit of wood that you will be putting back and large enough to hollow out of.
Then hollow out the sphere to the thickness that you want and glue the bung in, you will have to cut the bung to fit the hole and if you cut a step in the sphere so that the bung does not fall in you will find that you can bring the tail stock up to support the bung when gluing.
When the glue is dry you can turn the bung away leaving a nice round shape and add decoration and sand to completion.
I made a cone with a chucking point from a waste bit of wood at this stage and hot melt glued the sphere in the cone with the chucking point that’s on the sphere resting in the tail stock and then I removed the last chucking point. Two cones between centres also works but I did it my way as I’m still learning.
Sorry for such a long post and thank you for asking me to explain how I made my sphere, Les


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