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Old 01-21-2020, 08:47 PM
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milomilo milomilo is offline
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I just use the torch and my circle cutting tool.

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Old 01-21-2020, 10:24 PM
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Originally Posted by threepiece View Post
The cutting tool is much more likely to catch and stop the work with points on the edge. Nonetheless it is important to feed in small amounts at first to prevent catching the work.
Notice the jaws are contacting near the outer edge. This helps to hold the work.
Do you get enough traction just from tailstock pressure? I guess you must.
I 'll keep this in mind if I have to do a large disk.
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Old 01-21-2020, 11:20 PM
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May have to try that sometime.

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Old 01-22-2020, 12:09 AM
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Originally Posted by Ironman View Post
...Do you get enough traction just from tailstock pressure? I guess you must...
I've done larger discs like that quite often. As long as you keep the DOC down it works fine...

Measure twice and cut once...or...wait, was that the other way around?
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Old 01-22-2020, 12:11 AM
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terry lingle terry lingle is offline
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That is called pressure turning and can get quite interesting.
I have a disk with a pin in the center that I chuck up then machine flat. a piece of sandpaper spray tacked on to the fixture and you have a good setup.
This is a learn as you go trick just how aggressive you can get depends on your lathe and the size of your jewels and it is leaned from experience.
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