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A hollowed out sphere

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Forum topic by walnutles posted 02-15-2018 07:59 PM 591 views 0 times favorited 7 replies Add to Favorites Watch
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walnutles

13 posts in 648 days


02-15-2018 07:59 PM

I have been working on turning spheres but I didn’t want to turn a solid one so I turned this one out of wet yew and I hollowed out the middle replacing the bung and decorating it with a parting tool.
Its 5” tall and it was fun to turn, your comments and thoughts on it are more than welcome. Les


7 replies so far

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Wildwood

2693 posts in 2586 days


#1 posted 02-15-2018 08:22 PM

Look great!

-- Bill

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JoeK1

18 posts in 865 days


#2 posted 02-15-2018 09:04 PM

In case you are not aware, look at the properties of Yew. No personal experience with it.

http://www.wood-database.com/wood-articles/wood-allergies-and-toxicity/

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walnutles

13 posts in 648 days


#3 posted 02-15-2018 09:49 PM

Many thanks for looking and commenting on my work Bill I’m glad that you like it. Les

Many thanks for the link Joe i have been told that the leaves, bark and the sap are all poisonious and that they are now using the cuttings to help treat cancer so i do take extra care when turning it. The wood is a slow growing wood with a close grain it can have a dark blue colour in it if a nail has been left in the tree and its a joy to turn.
Many thanks once again for the link i will work my way through it as you never know. Les

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JoeK1

18 posts in 865 days


#4 posted 02-16-2018 04:17 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

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walnutles

13 posts in 648 days


#5 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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HapHazzard

116 posts in 1319 days


#6 posted 02-16-2018 11:27 PM

I bet you had a ball tunring that!

-- Unix programmers never die; they just > /dev/null

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JoeK1

18 posts in 865 days


#7 posted 02-17-2018 06:07 PM

Thanks for the explanation of the process. Clever idea.

I was visualizing using a small parting tool to make a cone shaped plug in the side of the sphere for access to the interior and really questioning the feasibility of this method.

Joe

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