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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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One turner's reason for buying a pricy XYZ turning tool is often
another turner's reason not to buy it. This isn't necessarily a contradiction. Some folks are sorry that there's not a gouge more expensive than a XYZ so they can buy it. Others think the XYZ is way over priced. Some folks are willing to pay a premium for eponymous factory grinds on otherwise run of the mill gouges. Other folks figure to grind their own version on a noname gouge. ![]() There are many good reasons for buying a quality turning tool. Utility, design, heat resistance, comfort in use, pretty handles and pride of ownership come to mind, but I wonder a little about one of the most hallowed reasons. I mean edge retention. I know it must be an important reason because so many good writers say so. I can understand that aggressive and/or too frequent sharpening _could shorten a tool's life. True, but the many good turners I know are competent sharpeners and they sharpen any gouge frequently while it's in use regardless of how long it's said to hold its edge. That's every gouge, whether it's hi carbon, hss, frozen, powdered or manicured steel or cost ten bucks or two hundred. How do we know when we need to resharpen a tool's edge? The only way I know to assure that _any gouge in use is as sharp as it can be or ought to be is to touch it up and see. Of course, there may be other ways that I don't know about, but most good turners appear to sharpen their tools often. Maybe it's worthwhile to find out that their powdered steel gouge didn't really need to be resharpened yet. ![]() And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? Just having fun musing with tongue in cheek and I know I'm wrong. Some kind turner better set me straight so I don't keep anyone from buying an XYZ. ![]() Turn to Safety, Arch Fortiter http://community.webtv.net/almcc/MacsMusings |
#2
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![]() "Arch" wrote in message ... And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? I'd say so. Now I also believe it's cheaper to sharpen for the final pass than use the grits of paper that a sharp gouge saves, so maybe I sharpen too much? I'll bet there's less than a penny worth of steel in a full 16" bowl from start to finish, even if you get one of the name gouges. |
#3
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Musing about anal retentive tool edges.
Arch, I know tools edges have flaws, but I didn't know they have character flaws. ![]() Dan |
#4
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George wrote:
"Arch" wrote in message ... And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? I'd say so. Now I also believe it's cheaper to sharpen for the final pass than use the grits of paper that a sharp gouge saves, so maybe I sharpen too much? I'll bet there's less than a penny worth of steel in a full 16" bowl from start to finish, even if you get one of the name gouges. Sorby came out with a tool called the Spindlemaster where you aren't supposed to sharpen the bevel at all, just hone the top edge. IOW, the tool never gets shortened. I wondered about this and asked the Sorby rep who was demonstrating the tools at the local Woodcraft. He said he'd been giving multiple demos of the tool each week for years and still using the same Spindlemaster. So I guess they do wear down very slowly :-). -- It's turtles, all the way down |
#5
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Hello Arch,
Well, you can count me in the habitual sharpening crowd... I don't care if its a $50.00 bowl bowl gouge, or a $200.00 one - I sharpen it when I get the first indication that the edge is going... It could have been sharpened a few seconds earlier, it really does not matter to me. In the early days of my studio, I turned long past the point where I should have re-sharpened the tool (in retrospect). Although I may have saved a bit of steel (I was born in the year of the rat), I paid for it with sore arms and sore hands at the end of the day. Sometimes, after along day of production turning, my arm would be almost numb and I seriously considered leaving the turning profession altogether. Thankfully, I saw the light very quickly and I decided to become a habitual sharpener. I can now turn for 16 -18 hours without getting sore. No sore arms, no white finger or carpal tunnel and a significant decrease in sanding time not to mention the savings in abrasives. :-) Maybe age does bring wisdom!!! :-) As for how long a gouge will last before it's used up, I can give you an example from my studio. The last bowl gouge I wore out (ground all the way up the flute) was 1/2" Henry Taylor (M2 HSS) deep fluted gouge. When it received its last sharpening and I retired it, I had turned 7,345 bowls with it over a four year period of time. That's a lot of wood and a lot of bowls. Bear in mind that I also used other tools on the bowls, but the bulk of the turning (roughing, hogging the exterior and interior, primary cuts and some intermediate cuts) were done with the 1/2" gouge. I've worn out a few gouges in the 11+ years of my studio, but I've turned more than 12,400 bowls, not to mention all of the platters, hollow forms, small items and all of the other things. Any way you look at it, a good gouge will last the typical woodturner many years, even if they sharpen it by what some would consider - excessively. For someone like me, four years may be the life expectancy of a bowl gouge, but that's a pretty good ROI for a $65.00 gouge! Thanks for your posting and best wishes to you in all of your woodturning endeavours! Take care. -- Better Woodturning and Finishing Through Chemistry... Steven D. Russell Eurowood Werks Woodturning Studio, The Woodlands, Texas Machinery, Tool and Product Testing for the Woodworking and Woodturning Industries Website: http://www.woodturningvideosplus.com Free Monthly Woodturning Newsletter * Your email is kept confidential Sign up at: http://www.woodturningvideosplus.com/lathe-talk.html On 2/14/07 12:01 PM, in article , "Arch" wrote: One turner's reason for buying a pricy XYZ turning tool is often another turner's reason not to buy it. This isn't necessarily a contradiction. Some folks are sorry that there's not a gouge more expensive than a XYZ so they can buy it. Others think the XYZ is way over priced. Some folks are willing to pay a premium for eponymous factory grinds on otherwise run of the mill gouges. Other folks figure to grind their own version on a noname gouge. ![]() There are many good reasons for buying a quality turning tool. Utility, design, heat resistance, comfort in use, pretty handles and pride of ownership come to mind, but I wonder a little about one of the most hallowed reasons. I mean edge retention. I know it must be an important reason because so many good writers say so. I can understand that aggressive and/or too frequent sharpening _could shorten a tool's life. True, but the many good turners I know are competent sharpeners and they sharpen any gouge frequently while it's in use regardless of how long it's said to hold its edge. That's every gouge, whether it's hi carbon, hss, frozen, powdered or manicured steel or cost ten bucks or two hundred. How do we know when we need to resharpen a tool's edge? The only way I know to assure that _any gouge in use is as sharp as it can be or ought to be is to touch it up and see. Of course, there may be other ways that I don't know about, but most good turners appear to sharpen their tools often. Maybe it's worthwhile to find out that their powdered steel gouge didn't really need to be resharpened yet. ![]() And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? Just having fun musing with tongue in cheek and I know I'm wrong. Some kind turner better set me straight so I don't keep anyone from buying an XYZ. ![]() Turn to Safety, Arch Fortiter http://community.webtv.net/almcc/MacsMusings |
#6
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Posted to rec.crafts.woodturning
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Well, you can count me in the habitual sharpening crowd...
UK turner Peter Child said he sharpened often, too. He kept a grindstone attached to the outboard shaft of his lathe and touched up tools as he turned. He said it also gave him a moment to ponder his next move. Dan |
#7
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I sharpen a lot, too. It didn't take too long to figure out how much
better the tools perform when sharp, and how much less sanding the project needed when finished with a sharp tool. I look at it this way; I would never use a dull chisel (I have some, I call them my "beaters") on a project, nor would I use a dull saw blade or drill bit. So why would I use a dull turning tool? I actually pick the tools I like to use by their feel and ease of use from their design, not so much from what kind of steel they have. Until I bought some HSS tools, I turned quite comfortably with a set of carbon steel tools. I still use a couple out of that set now and again simply because I like the way they feel. Woodturning is my hobby. I have always thought that I will never wear out any of my turning tools. Now, after reading Steve Russell's mileage on his bowl gouge, I am sure of it. I won't turn in my lifetime what he turns in a year. Robert |
#8
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#9
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On Wed, 14 Feb 2007 19:09:21 GMT, "George" wrote:
"Arch" wrote in message ... And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? I'd say so. Now I also believe it's cheaper to sharpen for the final pass than use the grits of paper that a sharp gouge saves, so maybe I sharpen too much? I'll bet there's less than a penny worth of steel in a full 16" bowl from start to finish, even if you get one of the name gouges. Nah, it's more than a penny. But it is definately less than the asking price. Enough 1095 (also known as [W1] water-hardening tool steel) for about 12 turning tools cost me $6 (retail) last week- so I figure that puts a gouge's raw steel value at about 50-80 cents. Of course, you're not just paying for the material- you're paying for every cost incurred by the company that made it, plus their profit margin, as well as the costs incurred by the seller, plus their profit. Everybody who touches it gets a nickel (probably much more) per unit, and pretty soon it adds up to real money. |
#10
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Well, being one who has discovered that I have to experiment for
myself to see what works best for me, I have some of the $200 and $60 gouges. I do like the handles that I made better because I like big and heavy (many years of concrete construction), and they fit MY hands. As far as the edge holding ability, the fancy steels do hold a workable (I can still hog more stuff off) edge longer, but don't hold the 'finish cut edge' any longer. I have ground one Ellsworth gouge down to a triangle tool, and now have 4 gouges I am working on. They are all getting shorter by the day, and will need to be replaced in a year or two. What will I replace them with? I don't know, it depends on what is new out there that I don't have yet. I don't have a 'tool' problem, it is all research. I do use a 320 grit wheel for my gouges, and that has greatly extended their lives. robo hippy On Feb 15, 4:05 am, Prometheus wrote: On Wed, 14 Feb 2007 19:09:21 GMT, "George" wrote: "Arch" wrote in message ... And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? I'd say so. Now I also believe it's cheaper to sharpen for the final pass than use the grits of paper that a sharp gouge saves, so maybe I sharpen too much? I'll bet there's less than a penny worth of steel in a full 16" bowl from start to finish, even if you get one of the name gouges. Nah, it's more than a penny. But it is definately less than the asking price. Enough 1095 (also known as [W1] water-hardening tool steel) for about 12 turning tools cost me $6 (retail) last week- so I figure that puts a gouge's raw steel value at about 50-80 cents. Of course, you're not just paying for the material- you're paying for every cost incurred by the company that made it, plus their profit margin, as well as the costs incurred by the seller, plus their profit. Everybody who touches it gets a nickel (probably much more) per unit, and pretty soon it adds up to real money. |
#11
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I for one, was taught to be in the group that a 80 grit wheel brought
an edge to a reasonable enough point that it was where I should be, and "someday" if I wanted to I could probably see the cutting differences between that and a 120 grit wheel. Then I watched Alan Lacers video and thought what a nut, stroping a skew. That edge should simply dull faster. (thats what I was told) I had no reason not to believe the man who taught me turning, he is well respected and well thought of (still so in my mind too) However, once I saw a partial explanation in Mike Darlow's sharpening video, it hit me. I was not open enough to the science of what was happening. A 80 or 120 grit wheel still leaves a fairly serated edge, in comparison to a plane or hand chisel blade, it's visible to the naked eye. Take that edge and hone it, heck yesterday I took my skew to a natural japanese water stone. Those serations are far smaller and get far better support from the surrounding steel. So starts the arguement that the sharper edge will last longer. The coarser serations from an 80 or 120 grit wheel should break off faster. I doubt that there would be any real noticable difference in the cut or finish either tool makes, but the concept of a longer lasting edge from this perspective is interesting. |
#12
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Consider this.......... If you are turning a 3"D blank at 2000 rpm (a
reasonable speed for a piece that size), the tool is traveling a mile in about 3.5 minutes. It seems to me that the edge will dull way before the quarter mile mark. This means that I need to touch up my edge every minute or so to continue using a sharp edge. Does edge retention matter? YES! Stuart Batty made a sharpening presentation at the Desert Roundup in Mesa, Arizona a couple of weeks ago. He explained the edge retention differences between carbon steel, M2, M4, 2030, 2060, V10 (A11), and V15. He also explained the differences in the metal's matrix and how sharpening affects that. For the really hard steels, he advocates honing. His conclusion is that a really hard metal is best because you can barely take one pass on the outside of an 8" bowl before the edge dulls too much. It is difficult to get a flowing curve if you have to stop in the middle of a pass to touch up the edge. Joe Fleming San Diego On Feb 14, 10:01 am, (Arch) wrote: One turner's reason for buying a pricy XYZ turning tool is often another turner's reason not to buy it. This isn't necessarily a contradiction. Some folks are sorry that there's not a gouge more expensive than a XYZ so they can buy it. Others think the XYZ is way over priced. Some folks are willing to pay a premium for eponymous factory grinds on otherwise run of the mill gouges. Other folks figure to grind their own version on a noname gouge. ![]() There are many good reasons for buying a quality turning tool. Utility, design, heat resistance, comfort in use, pretty handles and pride of ownership come to mind, but I wonder a little about one of the most hallowed reasons. I mean edge retention. I know it must be an important reason because so many good writers say so. I can understand that aggressive and/or too frequent sharpening _could shorten a tool's life. True, but the many good turners I know are competent sharpeners and they sharpen any gouge frequently while it's in use regardless of how long it's said to hold its edge. That's every gouge, whether it's hi carbon, hss, frozen, powdered or manicured steel or cost ten bucks or two hundred. How do we know when we need to resharpen a tool's edge? The only way I know to assure that _any gouge in use is as sharp as it can be or ought to be is to touch it up and see. Of course, there may be other ways that I don't know about, but most good turners appear to sharpen their tools often. Maybe it's worthwhile to find out that their powdered steel gouge didn't really need to be resharpened yet. ![]() And another thing. How many years does it take Ms. Average Turner to wear down her frequently sharpened gouge to a useless length? Let's say the gouge actually touches spinning wood for 3 hours a day for a 5 day week for 40 weeks a year. Seems to me it would take many years to wear down an 8 in. flute. No? Just having fun musing with tongue in cheek and I know I'm wrong. Some kind turner better set me straight so I don't keep anyone from buying an XYZ. ![]() Turn to Safety, Arch Fortiter http://community.webtv.net/almcc/MacsMusings |
#13
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Joe Fleming wrote:
: Stuart Batty made a sharpening presentation at the Desert Roundup in : Mesa, Arizona a couple of weeks ago. He explained the edge retention : differences between carbon steel, M2, M4, 2030, 2060, V10 (A11), and : V15. He also explained the differences in the metal's matrix and how : sharpening affects that. For the really hard steels, he advocates : honing. : His conclusion is that a really hard metal is best because you can : barely take one pass on the outside of an 8" bowl before the edge : dulls too much. Did he have a recommendation (out of the ones you mention above) as to which is best? And was there one that's a good price/performance option? -- Andy Barss |
#14
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Andy,
I think he plans to introduce tools in the V15 range of hardness. Of course, you will need to hone them to get them really sharp. Price performance? He didn't really recommend one, but I kind of picked out the 2030, 2060 and A11 as my choices given cost and performance. Joe On Feb 24, 10:11 am, Andrew Barss wrote: Joe Fleming wrote: : Stuart Batty made a sharpening presentation at the Desert Roundup in : Mesa, Arizona a couple of weeks ago. He explained the edge retention : differences between carbon steel, M2, M4, 2030, 2060, V10 (A11), and : V15. He also explained the differences in the metal's matrix and how : sharpening affects that. For the really hard steels, he advocates : honing. : His conclusion is that a really hard metal is best because you can : barely take one pass on the outside of an 8" bowl before the edge : dulls too much. Did he have a recommendation (out of the ones you mention above) as to which is best? And was there one that's a good price/performance option? -- Andy Barss |
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