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Thread: hollow form
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11th June 2006, 05:18 PM #1GOLD MEMBER
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hollow form
Hi
This is my first post although I have been a regular reader of the forum for some time . I have just turned my first hollow form . It looks like a flying saucer and I used a Bruce Leadbetter hollowing tool . My queary is what is the best way to mount this to clean up the base ? Obviously I can't use my bowl jaws . I tried gripping it using my long reach jaws through the hole but this was not satisfactory and would have marked the neck . I'm sure there must be an easy solution so I await words of wisdom .
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11th June 2006, 05:37 PM #2Hewer of wood
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Bit hard to say without a pic.
Maybe turn a cone that will fit into your aperture, pad with some soft material (paper towel might do, or some flat strips of router mat), bring up your tailstock, putting some packing between the point and the base of your piece. Clean up as much as you can, then finish off by hand.Cheers, Ern
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11th June 2006, 05:48 PM #3
I would use one of these
cheers
dazzler
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11th June 2006, 07:15 PM #4
No, no, Dazzler. One of these...
and one of these...
Simple & failsafe, provided they're correctly aligned as shown.
- Andy Mc
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12th June 2006, 12:17 AM #5
Hi Turnerted, you could also use these. Bowl jaw extenion set for your bowl jaws. They come in a set of 3, 14mm, 28mm and 42mm for $85.00. If you do a lot of bowl turning they are great to have, I know mine have payed for themselves. They are made by Enzo Verrecchia from Vermec. Don't have a web site but they are at 39 Dalton Street, KIPPA-RING, QLD. 4670
Ph: (07) 3284 3733 Fax (07) 3284 2733 and email is [email protected]
Hope this will help
Darren
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12th June 2006, 12:55 AM #6
donut chuck
[. My queary is what is the best way to mount this to clean up the base ? Obviously I can't use my bowl jaws . I tried gripping it using my long reach jaws through the hole but this was not satisfactory and would have marked the neck . I'm sure there must be an easy solution so I await words of wisdom
hughieInspiration exists, but it has to find you working. — Pablo Picasso
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12th June 2006, 01:27 AM #7Novice
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When i finish the bottom on hollow forms I put a scrape in a jaw chuck. Then i turn it to fit the hole in the top of the hollow form. This piece needs a sholulder too. This might take a few tests to get it just right. If you turn the piece a little far you can use something like a papaer towel to take up the space. After u have a snug fit then put it on and bring up the tail stock. You need to be careful not to get to agressive as friction is what makes it spin. At the end i do a little clean up off the lathe were the tails stock was.
Happy turning
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12th June 2006, 01:55 AM #8
Turnerted, I do like hughie does, and use a donut chuck... however, for vessels with a domed top, I made a different type of mounting plate. Instead of the flat plate (on the left in Hughie's second pic), I glued 7 pieces of plywood together, and turned a coned-shaped center. Padded with mousepad, it works like a charm to mount a hollowform.
I haven't figured out how to insert a pic in this forum yet, because my pics are on my computer, not a website (url).Al
Some minds are like concrete thoroughly mixed up and permanently set.
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12th June 2006, 02:09 AM #9
Duh!
Figured it out. Here's the pic.
Last edited by OGYT; 18th September 2006 at 03:20 PM.
Al
Some minds are like concrete thoroughly mixed up and permanently set.
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12th June 2006, 03:13 AM #10Woodturner
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Donut Chuck back plate
Geesh Hughie, that donut chuck is nice, but those bolts need to be facing IN, with "T" nuts on the back plate. You got any hands left?
Last edited by Gil Jones; 12th June 2006 at 03:29 AM. Reason: Show Back Plate of Donut Chuck
-- Wood Listener--
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12th June 2006, 06:08 AM #11
I've made mine to use rubberbands instead of bolts and T-nuts. It sure makes it easier on the hands when the rubber bands (instead of bolts) hit accidentally.
Just don't get in the way of those screw heads behind it... they're murder!!Last edited by OGYT; 18th September 2006 at 03:20 PM.
Al
Some minds are like concrete thoroughly mixed up and permanently set.
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12th June 2006, 11:12 AM #12Woodturner
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Pretty slick idea, Al.
-- Wood Listener--
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12th June 2006, 12:13 PM #13
tee bolts 'n hands
Geesh Hughie, that donut chuck is nice, but those bolts need to be facing IN, with "T" nuts on the back plate. You got any hands left
hughieInspiration exists, but it has to find you working. — Pablo Picasso
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12th June 2006, 02:28 PM #14Novice
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???
Hi again,
I put a repley in earlier, now i am a little confused. I always understude a hollow form to have a small whole at the top. Most of mine r under 2 inchs. Will this clamping jigs work on something like this?? They look like they r 4 open forms like bowls. Not 2 be cridical, just wondering.
Happy turning
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12th June 2006, 05:39 PM #15GOLD MEMBER
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hollow form
Thanks for all the suggestions . Looks like I'll make up a donut .
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