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Spherical turning attachmentfor the Sherline lathe

I made this tool few years ago. It is based loosely on a design in the book Improvements & accessories for your lathe by J.A Radford. I didn't make any plans or drawings as I was (am) to lazy for that. I hope nevertheless that people get the idea.

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Below are some closeups of how the size of the sphere is adjusted.

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Here you see the the sliding parts togeter. Note the light dimple in the rightmost part. It is a set screew that has a hollow end with small piece of plastic. This part mates with the leadscreew.

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Finally, here is my close-up lens ringligt combo. You may have seen it under another name, serving another purpose, but this setup works surprizingly well.