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Thread: Thread Cutting
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12th July 2011, 09:39 AM #1
Thread Cutting
Hi All
I am interested in cutting threads on on small turned boxes. Todate I have only
been able to source info from o/seas, namely, Klein and Soren Berger.
Does anybody know of Aussie ones or has anybody got one they no longer need.
Thanks
PS I know about thread chasing chisels.Last edited by L R P; 12th July 2011 at 09:40 AM. Reason: more info
Lindz
It's only a foot long, but I don't use it as a rule
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12th July 2011 09:39 AM # ADSGoogle Adsense Advertisement
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12th July 2011, 10:54 AM #2
You say
PS I know about thread chasing chisels.
hughie is a member here & he makes thread chasers.Cliff.
If you find a post of mine that is missing a pic that you'd like to see, let me know & I'll see if I can find a copy.
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12th July 2011, 01:34 PM #3
thread chasers and all that jazz
Not many are locally made and most are expensive, thats how I got into it. The one I make is a three in one tool. It can cut inside and outside threads and do some basic trimming around the edges. As it saves buying several tools I figured its far more cost effective.
For info look up, this one is about the best also try Sorby tools they have a decent article on thread chasing.
http://www.toolsforworkingwood.com/p.../MS-THRDCH.pdf
Theres some pretty fancy machines out there for doing this sort of thing, as I see it, a whole lot of expensive technology to produce a couple of threads.
pm me if would like more info,if I am going to make some it will be cheaper to do several at once.Inspiration exists, but it has to find you working. — Pablo Picasso
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12th July 2011, 04:37 PM #4
Thanks Cliff
It 's just that jigs look to have a better thread per inch, The smallest chaser I've seen is 16tpi, I think lidded boxes would benefit from 10 or 12 tpi, strength wise.
I will have a yarn with Hughie.
CheersLindz
It's only a foot long, but I don't use it as a rule
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12th July 2011, 08:36 PM #5
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12th July 2011, 10:29 PM #6
Click "Threading" on the second line here: Wood turning
A commercial cross-slide (i.e. X-Y) vise would be less troublesome than all the machining. On my bucket list is a similar contraption, using all-thread the same as my lathe spindle, using two hex nuts in the vise, with a truck valve spring between them to eliminate backlash.
For the cutter, I intend to use a 60-degree dovetail bit in a Jacobs chuck on the lathe spindle, with the whole affair rotated 30 degrees for alignment.
It's on the same list as my Rose Engine, unfortunately.
Cheers,
JoeOf course truth is stranger than fiction.
Fiction has to make sense. - Mark Twain
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12th July 2011, 10:50 PM #7
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12th July 2011, 11:28 PM #8Retired
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What a fantastic site Joe. A very inventive person.
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13th July 2011, 09:28 AM #9
Thanks everyone,
Thinking I will go with chisels, more learning.Lindz
It's only a foot long, but I don't use it as a rule
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13th July 2011, 09:46 AM #10
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13th July 2011, 10:46 AM #11What a fantastic site Joe. A very inventive personInspiration exists, but it has to find you working. — Pablo Picasso
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13th July 2011, 03:00 PM #12
One of the recent Peninsular Wood Turners newsletters had an article and design for a threading jig.
Oh here is one http://www.atbq.qc.ca/jm2/thread.htm
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13th July 2011, 09:35 PM #13
Around the same time I found the Japanese threading jig, I also found one built by Dick Veitch of North Shore Woodturning Guild in New Zealand. ( North Shore Wood turning Guild ). Unfortunately the link from 2006 is no longer valid. I did, however, copy the text (very voluminous) and the pictures.
Essentially, he used a method similar to the Japanese gent, with a commercial X-Y vise, but with the smaller all-thread welded to a stub to mate with his chuck. The two carrier nuts are welded to a bar which clamps in the vise. I figure 8 tpi (my current lathe configuration)would be OK for wood threads, so my "improvement," when and if it comes to pass, will use a single piece of all-thread, provided I can devise a proper shoulder to minimize runout. Also, the truck valve spring could eliminate backlash.
One problem with clamping the loose hex nuts in the vise (Yeah, it hurts to even think about it) is to consistently clamp them in the correct orientation, i.e. with either the flats or the corners resting on the vise bed, because the center is at a different height for each.
I've attached a couple pictures of Veitch's apparatus.
Cheers,
JoeOf course truth is stranger than fiction.
Fiction has to make sense. - Mark Twain
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14th July 2011, 12:19 AM #14Deceased
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14th July 2011, 10:39 AM #15Novice
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Thread cutting
At the recent Adelaide Home show the members of the Copper Coast Woodworkers had a machine for cutting internal and external threads, a very smart bit of kit. Sorry I cant give you the name of the individual but he was very well versed in the mechanics of the treading issue.Copper Coast Woodworkers Home should get you started on a search for the right person.
Good luck
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