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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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#1
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Information on duplicating
"Keith Young" wrote:
How can I duplicate candle holders etc. Thanks Keith Two ways: 1. Get a duplicator for your lathe - search 'lathe duplicator' - most common manufacturer is Vega. Relatively fast. 2. Transfer the profile of the candlestick onto a piece of hardboard and cut it out. Match the negative of the hardboard profile with the positive of the candlestick as you turn it. To help transfer the profile, get a profile gauge. Relatively slow. LD |
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Lobby Dosser wrote:
"Keith Young" wrote: How can I duplicate candle holders etc. 2. Transfer the profile of the candlestick onto a piece of hardboard and cut it out. Match the negative of the hardboard profile with the positive of the candlestick as you turn it. To help transfer the profile, get a profile gauge. Relatively slow. Forgive my ignorance, but what's a profile gouge? And how exactly does it help me to recreate an existing profile? -- Alun |
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Alun Saunders wrote:
Lobby Dosser wrote: "Keith Young" wrote: How can I duplicate candle holders etc. 2. Transfer the profile of the candlestick onto a piece of hardboard and cut it out. Match the negative of the hardboard profile with the positive of the candlestick as you turn it. To help transfer the profile, get a profile gauge. Relatively slow. Forgive my ignorance, but what's a profile gouge? And how exactly does it help me to recreate an existing profile? gAuge. Best way to describe it is to show it: http://www.readersdigest.ca/homegard...repairs08.html Depending on the length of your candlesticks, you might have to make multipl impressions along their length. Does that help? LD |
#4
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Lobby Dosser wrote:
Alun Saunders wrote: Forgive my ignorance, but what's a profile gouge? And how exactly does it help me to recreate an existing profile? gAuge. Best way to describe it is to show it: http://www.readersdigest.ca/homegard...repairs08.html Depending on the length of your candlesticks, you might have to make multipl impressions along their length. Oops! Must learn to read more carefully next time -- Alun |
#5
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The one shown in the Readers Digest link is the kind I USED to use. I like
the ones that are now available which are made of plastic: 1,) They are available in greater length. 2.) The "fingers" do not get bent or dislocated. They are available at Woodcraft, or4 for half the price, at Harbor Freight. |
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"Leo Lichtman" wrote:
The one shown in the Readers Digest link is the kind I USED to use. I like the ones that are now available which are made of plastic: Grabbed the first one I could find that showed one in use. At least now he's not out looking for a profile gouge. ) 1,) They are available in greater length. 2.) The "fingers" do not get bent or dislocated. They are available at Woodcraft, or4 for half the price, at Harbor Freight. |
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Lobby Dosser wrote:
"Leo Lichtman" wrote: The one shown in the Readers Digest link is the kind I USED to use. I like the ones that are now available which are made of plastic: Grabbed the first one I could find that showed one in use. At least now he's not out looking for a profile gouge. ) If I find one, you'll be the first to know -- Alun |
#8
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How can I duplicate candle holders etc.
Thanks Keith Keith: Far easier and faster than expensive lathe duplicators and profile gauges are the techniques used by turners for hundreds of years to turn out near duplicates of chair and table legs, candlesticks and the like by the thousands. The key here is *near* duplicates, not *exact* duplicates, although you can turn "exact" copies to any degree of precision you want. The legs of a handmade chair, or two candlesticks or the pieces of a chess set, are never exactly the same, but your eyes want them to be, so you see them as exact duplicates. Go into an antique store some day and really measure the legs of an old Windsor chair and marvel at the differences in those "identical" legs. If you can, find a really old one whose legs are oval (they were turned from green wood in 12 minutes or less each, and there is NO glue in those still-tight joints) and not even round. To duplicate your candlesticks easily, measure the locations of the elements along the length, then mark them on a "story stick" that you can hold up to a spinning blank and transfer the measurements quickly. If you are making hundreds of the candle holders, instead of marking the story stick, actually notch the edge to accommodate the point of a pencil, or place small brads at the element transitions to make their places and simply press the stick into the spinning blank. For the pieces to look identical, the location of the elements along the length is FAR more important than diameters or the exact shapes between the elements. Measure the diameters of important points along the candle stick (widest dimension, diameters above and below beads, deepest points of coves, etc) and part the blank at those locations to those depths (or slightly shallower as needed to allow for finishing cuts or sanding). Turn the bulk of the candle holder between these points by eye, using the master candlestick only as a reference pattern. Locating the elements and parting the important points to diameter should take about as long as mounting the blank between centers. Using these techniques, I have many times turned sets of "identical" table legs (some patterns in batches of 48 for a friend's business), chair legs, a set of 150 balusters, Christmas ornaments, candlesticks, etc... certainly as identical as anything to come out of an expensive lathe duplicator, and with almost no set-up time. For more ideas and photos, see Conover's Lathe Book and Raffin's Turning Wood. Michael Latcha - at home in Redford, MI |
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