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Inspired by a great demonstration at our club meeting by Kip Christiansen and a visit with Nelson Cassinger year ago, last week I miniaturized a Longworth chuck to use instead of other custom chucks made for specific sizes. Now it is time to put it to use.
I glued up segmented rings of padauk, maple, heat treated ash, cherry, and laminated birch. Each was twelve segments and about four inches in diameter. I also prepared similar squares of walnut, maple, and cherry veneer.
For there, assembling the bracelets is a process of using double stick tape, glue, parting off, and facing off. I did not thin down any ring before gluing. Instead, a ring was glued to previous rings and then parted off at the target width. Then I would face it off to be ready for the next glue joint.
In use, I used my metal lathe for facing off rather than the wood lathe. The metal lathe is rigged with a similar spindle to my wood lathe. This enables me to switch between lathes to use whichever is best able to do the job. A metal lathe is great at cutting straight cuts at precise distances. The wood lathe is better at cutting curves and removing wood quickly.
You'll have to watch to appreciate it.
To yield 4 bracelets from one glue up, I used a 1/8x1/8 High Speed Steel bit. My usual parting tool is too tall to effecting cut a small circle. The bit is available from machinist supply stores.
Enjoy.
p.s. If you would like a more in depth demonstration, please contact me for an IRD (Zoom Demo) on this or other topics.
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