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Simple Aid for Turning Spheres and Spheroids Without a Jig

Dennis J Gooding

Dennis J Gooding

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A couple of years ago I posted an article in the Tutorials and Tips Forum on how to turn spheres easily without a jig. I have just added a sequel that extends the technique to turning oblate or prolate spheroids, and (although I forgot to mention it) ovoids.
 
Bill Boehme said:
... and, I presume ellipsoids as well.
Click to expand...

I believe that spheroids are a subset of ellipsoids, specifically those that are circular about one axis. Maybe with an elliptical chuck you could do arbitrary ellipsoids. My mind boggles at the thought of working out the math for that. :(
 
Dennis J Gooding said:
A couple of years ago I posted an article in the Tutorials and Tips Forum on how to turn spheres easily without a jig. I have just added a sequel that extends the technique to turning oblate or prolate spheroids, and (although I forgot to mention it) ovoids.
Click to expand...
On my way to search for it!
 
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