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Kurt explains the interactions of the threading process, thread pitch, grain direction, material density, and thread final purpose |
He shows the various inside and outside threading tools commercially available |
Preparing a piece for outside threading, Kurt explains the desired raw material characteristics |
After explaining the "striking" of the thread, he demonstrates the lathe speed and light touch used |
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With the thread struck, Kurt continues to refine and deepen the thread over the entire surface |
With the thread partially cut, Jed Donahue is invited to give it a try |
After the thread is finished, it's passed around for closer examination |
Kurt explains the measurement of matching inside and outside threads |
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While it's easily done by hand, there are special measuring tools available |
Done with the same techniques as the outside, Kurt demostrates cutting an inside thread |
He shows how it can also be done using the "Bill Jone's" handle |
The Cherry demo piece of inside and tapered outside threads |
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After a quick review, Kurt answers any last questions |
As with any turning, lathe height is important regardless of how it's achieved |
A variety of inside and outside, straight and tapered threads in pieces in Cherry, Blackwood, Corian, Walnut, and found wood |
With almost everyone gone, the last few help clean up the room and head home |
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Photos by Ken Hertzog & Kurt Hertzog |
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