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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
We are setting up a "family machine shop". Way back when, during an
ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? Thanks, Vernon |
#2
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Oct 20, 9:47*pm, Vernon wrote:
We are setting up a "family machine shop". *Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. *It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. *Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. *So forgive the stupidity of my questions. But here's one: *Do we really need this grinder? *I don't know how long a lathe tool lasts. *Nor do I know how much they cost. *In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? *Or is it a valuable addition to a small shop? Thanks, Vernon To clarify: This is not a fancy multi-head tool maker's grinder. It is not too different from a bench grinder. However, it has a vertically spinning diamond wheel, one side of which, has a table that can be adjusted for angle and distance from the diamond wheel. The work is fed into the face of the diamond wheel, not the edge. My understanding is that its exclusive purpose is the grinding of carbide lathe "inserts". V |
#3
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On 2008-10-21, Vernon wrote:
We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. Note that you should *not* use a diamond wheel on normal steels, including HSS which represents a lot of lathe bits. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? HSS bits come as blanks, which you need to grind to the shape needed for your task of the moment. You will need a normal stone, not a diamond stone for these. You can have two kinds of carbide late tools: 1) Brazed insert tooling. A small piece of carbide is brazed to the steel shank with some overhang so you can grind the carbide without touching the HSS (which would ruin your diamond wheel, and any other wheel would be pretty close to useless on carbide. These can dull and need touching up. They come premade in several shapes -- right-hand cutting, left-hand cutting and other shapes. 2) Indexable insert tooling. The carbide drops into a pocket and is held down by one of several techniques. When it gets dull, you loosen the hold-down, and rotate to the next point. Each point will project the same distance, so you don't have to re-adjust the position of the tool when you index to the next point. You *could* sharpen these -- but you would lose the benefit of repeatable projection, and many inserts of this type have grooves to act as chipbreakers and for various other purposes, and grinding would change the relationship of the edge to the grooves -- so it is better to not grind on the inserts. So -- the diamond wheel grinder which you have could be used for sharpening brazed insert carbide tooling, and for changing the shape somewhat for special purposes -- but you will need another grinder for normal HSS tool grinding. Good Luck, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#4
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Mon, 20 Oct 2008 20:53:42 -0700 (PDT), Vernon
wrote: On Oct 20, 9:47*pm, Vernon wrote: We are setting up a "family machine shop". *Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. *It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. *Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. *So forgive the stupidity of my questions. But here's one: *Do we really need this grinder? *I don't know how long a lathe tool lasts. *Nor do I know how much they cost. *In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? *Or is it a valuable addition to a small shop? Thanks, Vernon To clarify: This is not a fancy multi-head tool maker's grinder. It is not too different from a bench grinder. However, it has a vertically spinning diamond wheel, one side of which, has a table that can be adjusted for angle and distance from the diamond wheel. The work is fed into the face of the diamond wheel, not the edge. My understanding is that its exclusive purpose is the grinding of carbide lathe "inserts". V Actually, you can use it to grind any carbide bit, do not use for high speed steel bits as you will destroy the diamond wheel. If it were mine, I would look into replacing the diamond wheel with a similar one made of carborundum or aluminium oxide. This would make it very useful. Gerry :-)} London, Canada |
#5
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Oct 21, 12:21*am, Gerald Miller wrote:
On Mon, 20 Oct 2008 20:53:42 -0700 (PDT), Vernon wrote: On Oct 20, 9:47*pm, Vernon wrote: We are setting up a "family machine shop". *Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. *It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. *Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. *So forgive the stupidity of my questions. But here's one: *Do we really need this grinder? *I don't know how long a lathe tool lasts. *Nor do I know how much they cost. *In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? *Or is it a valuable addition to a small shop? Thanks, Vernon To clarify: *This is not a fancy multi-head tool maker's grinder. *It is not too different from a bench grinder. *However, it has a vertically spinning diamond wheel, one side of which, has a table that can be adjusted for angle and distance from the diamond wheel. *The work is fed into the face of the diamond wheel, not the edge. *My understanding is that its exclusive purpose is the grinding of carbide lathe "inserts". V Actually, you can use it to grind any carbide bit, do not use for high speed steel bits as you will destroy the diamond wheel. If it were mine, I would look into replacing the diamond wheel with a similar one made of carborundum or aluminium oxide. This would make it very useful. Gerry :-)} London, Canada- Hide quoted text - - Show quoted text - Don and Gerry. Thanks. That was very helpful. I will attempt to educate myself as to the differences between applicability of HSS and carbide as regards anything we are likely to do. Steel is something I understand. At least, far better than carbide. So I will look into replacing the wheel. V |
#6
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Mon, 20 Oct 2008 19:47:36 -0700 (PDT), Vernon wrote:
We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? No. You'll never need it; carbide lasts forever, even when you crash the tool into the chuck jaws. Send it to me - I'll dispose of it safely for you. |
#7
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Mon, 20 Oct 2008 22:58:55 -0700 (PDT), Vernon
wrote: On Oct 21, 12:21*am, Gerald Miller wrote: On Mon, 20 Oct 2008 20:53:42 -0700 (PDT), Vernon wrote: On Oct 20, 9:47*pm, Vernon wrote: We are setting up a "family machine shop". *Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. *It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. *Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. *So forgive the stupidity of my questions. But here's one: *Do we really need this grinder? *I don't know how long a lathe tool lasts. *Nor do I know how much they cost. *In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? *Or is it a valuable addition to a small shop? Thanks, Vernon To clarify: *This is not a fancy multi-head tool maker's grinder. *It is not too different from a bench grinder. *However, it has a vertically spinning diamond wheel, one side of which, has a table that can be adjusted for angle and distance from the diamond wheel. *The work is fed into the face of the diamond wheel, not the edge. *My understanding is that its exclusive purpose is the grinding of carbide lathe "inserts". V Actually, you can use it to grind any carbide bit, do not use for high speed steel bits as you will destroy the diamond wheel. If it were mine, I would look into replacing the diamond wheel with a similar one made of carborundum or aluminium oxide. This would make it very useful. Gerry :-)} London, Canada- Hide quoted text - - Show quoted text - Don and Gerry. Thanks. That was very helpful. I will attempt to educate myself as to the differences between applicability of HSS and carbide as regards anything we are likely to do. Steel is something I understand. At least, far better than carbide. So I will look into replacing the wheel. V I concur. With small lathes..High Speed Steel cutters are going to be best for you, as you cannot generally generate the cutting forces that carbide requires..is is required for. Razor sharp HSS is what you are going to be needing..and Carbide can never really be made razor sharp..the edges tend to be too friable. Put a white wheel on you tool grinder and you are golden for making cutters, shaping cutters and resharpening cutters..HSS ones. Im a bit grinder poor in my shop, with 3 verticle bench sanders, 2 Baldor tool grinders (one for carbide, one for HSS) etc etc...and generally the belt sanders or HSS cutter grinders get the most use. Gunner Whenever a Liberal utters the term "Common Sense approach"....grab your wallet, your ass, and your guns because the sombitch is about to do something damned nasty to all three of them. |
#8
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Mon, 20 Oct 2008 19:47:36 -0700 (PDT), the infamous Vernon
scrawled the following: We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? I'm not a machinist, but I can tell you that it's a valuable addition to the shop. Learn to sharpen your own tools and save tons of time and a bit of money. If you can adapt it and learn to use it for your kitchen knives and wifey will love you all the more. What's not to like? An Old Tool is a Good Tool! -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn |
#9
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On 21 Oct 2008 04:58:11 GMT, the infamous "DoN. Nichols"
scrawled the following: On 2008-10-21, Vernon wrote: We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. Note that you should *not* use a diamond wheel on normal steels, including HSS which represents a lot of lathe bits. I thought -speed- determined that. I adore static diamond plates (both EZE Lap and DMT) and sharpen everything I own on them. If his diamond wheel is geared down like the woodworking sharpeners, it should be great on HSS, too, shouldn't it? Isn't it heat which melts the steel's carbon into the diamond (or vice versa)? You'll get my diamond plates away from me when you pry them from my cold, dead hands. -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn |
#10
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Oct 20, 10:47*pm, Vernon wrote:
We are setting up a "family machine shop". *Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. *It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. *Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. *So forgive the stupidity of my questions. But here's one: *Do we really need this grinder? *I don't know how long a lathe tool lasts. *Nor do I know how much they cost. *In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? *Or is it a valuable addition to a small shop? Thanks, Vernon I'm not a real machinist, this is my experienced amateur, prototyper, occasional toolmaker's opinion. I have a pedestal grinder set up with one coarse aluminum wheel for general grinding and HSS tool bits, the other side is a fine silicon carbide wheel for carbide bits and light finish grinding on steel. I've seen many grinders like this at machine shop auctions. Another small bench grinder has one wheel only for TIG tungstens and a diamond wheel for finishing the edge on carbide. As mentioned you can't grind much off an insert, but you can take all the rough cuts and then touch it up for the finish passes. I use the offset brazed threading bits rather than inserts when I need to thread close to a shoulder, and the diamond wheel is useful for keeping these sharp. I'll touch it up with a hand lap or the diamond grinder before the finish cuts if the threads finish doesn't look smooth enough after roughing. Jim Wilkins |
#11
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
Larry Jaques wrote:
On Mon, 20 Oct 2008 19:47:36 -0700 (PDT), the infamous Vernon scrawled the following: We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? I'm not a machinist, but I can tell you that it's a valuable addition to the shop. Learn to sharpen your own tools and save tons of time and a bit of money. If you can adapt it and learn to use it for your kitchen knives and wifey will love you all the more. What's not to like? An Old Tool is a Good Tool! -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn I've got a diamond grinder that sounds similar to the OPs and I use it on carbide and HSS. It is normally referred to as a diamond lap and it has a very fine wheel and leaves an almost polished finished which is much finer then any grinding wheel I have used. I don't use it for stock removal as such just to give the shaped tool a final finish which is much better than left by my other grinding wheels. It doesn't seem to have effected the wheel but maybe that is to do with not running the tool hot. |
#12
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
In article , Vernon wrote:
On Oct 20, 9:47=A0pm, Vernon wrote: We are setting up a "family machine shop". =A0Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. =A0It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. =A0Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. =A0So forgive the stupidity of my questions. But here's one: =A0Do we really need this grinder? =A0I don't know how long a lathe tool lasts. =A0Nor do I know how much they cost. =A0In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? =A0Or is it a valuable addition to a small shop? Thanks, Vernon To clarify: This is not a fancy multi-head tool maker's grinder. It is not too different from a bench grinder. However, it has a vertically spinning diamond wheel, one side of which, has a table that can be adjusted for angle and distance from the diamond wheel. The work is fed into the face of the diamond wheel, not the edge. My understanding is that its exclusive purpose is the grinding of carbide lathe "inserts". Sounds like it could be a Glendo. Very nice & very useful. Does it looks like one of these? http://www.accu-finish.com They run at a slow speed, and can be used for steel as well as carbide. The tool rest mak s it possible to grind special bits to accurate & repeatable angles. Doug White |
#13
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Mon, 20 Oct 2008 22:58:55 -0700 (PDT), Vernon
wrote: Don and Gerry. Thanks. That was very helpful. I will attempt to educate myself as to the differences between applicability of HSS and carbide as regards anything we are likely to do. Think of HSS as a cabinet scraper or sandpaper, compared to carbide, being a bulldozer, in a production operation. Steel is something I understand. At least, far better than carbide. So I will look into replacing the wheel. V Gerry :-)} London, Canada |
#14
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Tue, 21 Oct 2008 18:45:45 +0100, the infamous David Billington
scrawled the following: Larry Jaques wrote: On Mon, 20 Oct 2008 19:47:36 -0700 (PDT), the infamous Vernon scrawled the following: We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? I'm not a machinist, but I can tell you that it's a valuable addition to the shop. Learn to sharpen your own tools and save tons of time and a bit of money. If you can adapt it and learn to use it for your kitchen knives and wifey will love you all the more. What's not to like? An Old Tool is a Good Tool! -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn I've got a diamond grinder that sounds similar to the OPs and I use it on carbide and HSS. It is normally referred to as a diamond lap and it has a very fine wheel and leaves an almost polished finished which is much finer then any grinding wheel I have used. I don't use it for stock removal as such just to give the shaped tool a final finish which is much better than left by my other grinding wheels. It doesn't seem to have effected the wheel but maybe that is to do with not running the tool hot. What's the RPM of the diamond plate? The woodworking models are slower, but it looks like they've gone to sandpaper disks now. Hmm... Work Sharp 3000 = 580rpm Tormek T-7 = 90rpm (vertical, like a standard grinder with a wider stone. It's the Cadillac of sharpeners @ $600ish.) Veritas = 650rpm -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn |
#16
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On 2008-10-21, Larry Jaques novalidaddress@di wrote:
On 21 Oct 2008 04:58:11 GMT, the infamous "DoN. Nichols" scrawled the following: [ ... ] Note that you should *not* use a diamond wheel on normal steels, including HSS which represents a lot of lathe bits. I thought -speed- determined that. I adore static diamond plates (both EZE Lap and DMT) and sharpen everything I own on them. If his diamond wheel is geared down like the woodworking sharpeners, it should be great on HSS, too, shouldn't it? If the speed is kept slow enough -- and the pressure low enough as well, you should have no problems. But I don't know the speed of the tool which he has -- that was not specified in the thread so far AFIKT. Isn't it heat which melts the steel's carbon into the diamond (or vice versa)? The diamond's carbon migrates into the steel, wearing the diamond quite rapidly, and hardening the steel at the same time. :-) You'll get my diamond plates away from me when you pry them from my cold, dead hands. :-) Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#17
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Diamond wheel tool grinder
Larry Jaques wrote:
On Tue, 21 Oct 2008 18:45:45 +0100, the infamous David Billington scrawled the following: Larry Jaques wrote: On Mon, 20 Oct 2008 19:47:36 -0700 (PDT), the infamous Vernon scrawled the following: We are setting up a "family machine shop". Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. So forgive the stupidity of my questions. But here's one: Do we really need this grinder? I don't know how long a lathe tool lasts. Nor do I know how much they cost. In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? Or is it a valuable addition to a small shop? I'm not a machinist, but I can tell you that it's a valuable addition to the shop. Learn to sharpen your own tools and save tons of time and a bit of money. If you can adapt it and learn to use it for your kitchen knives and wifey will love you all the more. What's not to like? An Old Tool is a Good Tool! -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn I've got a diamond grinder that sounds similar to the OPs and I use it on carbide and HSS. It is normally referred to as a diamond lap and it has a very fine wheel and leaves an almost polished finished which is much finer then any grinding wheel I have used. I don't use it for stock removal as such just to give the shaped tool a final finish which is much better than left by my other grinding wheels. It doesn't seem to have effected the wheel but maybe that is to do with not running the tool hot. What's the RPM of the diamond plate? The woodworking models are slower, but it looks like they've gone to sandpaper disks now. Hmm... 2850RPM , it's one of these http://www.assettrack.com/thumbnail/...jhtrimtool.jpg . I don't know what the grit is and the designation on the spare wheel doesn't make any sense to me regarding grit size. Work Sharp 3000 = 580rpm Tormek T-7 = 90rpm (vertical, like a standard grinder with a wider stone. It's the Cadillac of sharpeners @ $600ish.) Veritas = 650rpm -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." -- Ernest Benn |
#18
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Diamond wheel tool grinder
On Oct 21, 7:12*am, Larry Jaques
wrote: On Mon, 20 Oct 2008 19:47:36 -0700 (PDT), the infamous Vernon scrawled the following: We are setting up a "family machine shop". *Way back when, during an ebay buying binge, I bought a nifty old diamond wheel tool grinder. I'm having a senior moment and can't remember the brand but it is good old 'murcan iron. *It has a single phase 110v motor. My understanding is that its purpose on earth is to cut carbide lathe tools. *Now that we've recently acquired a tiny Enco lathe and mill, the tool grinder may cease being an objet d'art and resume a practical life. We are all clueless, rank amateurs. *So forgive the stupidity of my questions. But here's one: *Do we really need this grinder? *I don't know how long a lathe tool lasts. *Nor do I know how much they cost. *In other words, since we don't have an industrial shop full of union machinists, is this tool overkill for our needs? *Or is it a valuable addition to a small shop? I'm not a machinist, but I can tell you that it's a valuable addition to the shop. *Learn to sharpen your own tools and save tons of time and a bit of money. If you can adapt it and learn to use it for your kitchen knives and wifey will love you all the more. *What's not to like? An Old Tool is a Good Tool! -- "Politics is the art of looking for trouble, finding it whether it exists or not, diagnosing it incorrectly, and applying the wrong remedy." * * * * * * * * * * * * * * * * * * * *-- Ernest Benn- Hide quoted text - - Show quoted text - I suddenly remembered that the brand is "Hammond of Kalamazoo". Here is an ebay ad for one similar, but not identical, to mine. V http://cgi.ebay.com/Hammond-6-Double...2em118Q2el1247 |
#19
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Jim Wilkins" wrote in message ... snip------ I have a pedestal grinder set up with one coarse aluminum wheel for general grinding and HSS tool bits, the other side is a fine silicon carbide wheel for carbide bits and light finish grinding on steel. Silicon carbide wheels are not intended for use on steel, for the same reason that diamond is not intended for use on steel. Because the temperature at the point of contact is high, carbon from the silicon carbide migrates to the steel. The effect is to dull the grains quickly---so the wheel glazes and ceases to cut. You apply more pressure, which in turn creates more heat and accelerates the collapse of the cutting capability of the wheel. Aluminum oxide will out-perform silicon carbide, in spite of the fact that it is much softer. It's the recommended abrasive for grinding steel. Harold I've seen many grinders like this at machine shop auctions. Another small bench grinder has one wheel only for TIG tungstens and a diamond wheel for finishing the edge on carbide. As mentioned you can't grind much off an insert, but you can take all the rough cuts and then touch it up for the finish passes. I use the offset brazed threading bits rather than inserts when I need to thread close to a shoulder, and the diamond wheel is useful for keeping these sharp. I'll touch it up with a hand lap or the diamond grinder before the finish cuts if the threads finish doesn't look smooth enough after roughing. Jim Wilkins |
#20
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Vernon" wrote in message ... snip---- I suddenly remembered that the brand is "Hammond of Kalamazoo". Here is an ebay ad for one similar, but not identical, to mine. I'm going to assume that the model you have is also a high speed machine---where the diamond wheel rotates above a couple hundred RPM. by the way, Hammond is a well respected builder of diamond grinding machines. You are fortunate to have one of them. Do NOT use the diamond wheel on steel of any description. As DoN mentioned, diamond, at high temperature, is destroyed when used for grinding steel, which has an affinity for carbon. The steel suffers almost no consequences, but the cutting edge of the diamond is rounded quickly, rendering the wheel less capable of cutting. More pressure is applied to overcome the problem, raising the temperature ever higher, degrading the diamond more severely. Norton has performed extensive testing and has documented the failure of diamond when applied to steel at high temperatures. When you use the wheel for re-sharpening brazed tooling, insure that you have used an aluminum oxide wheel to relieve the steel to the side and below the carbide insert. You can do that easily by grinding a relief angle that is slightly greater than the desired relief angles of the carbide tool. Harold |
#21
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Diamond wheel tool grinder
On Oct 22, 2:15*pm, "Harold and Susan Vordos" wrote:
"Vernon" wrote in message ... snip---- I suddenly remembered that the brand is "Hammond of Kalamazoo". *Here is an ebay ad for one similar, but not identical, to mine. I'm going to assume that the model *you have is also a high speed machine---where the diamond wheel rotates above a couple hundred RPM. *by the way, Hammond is a well respected builder of diamond grinding machines.. You are fortunate to have one of them. Do NOT use the diamond wheel on steel of any description. * *As DoN mentioned, diamond, at high temperature, is destroyed when used for grinding steel, which has an affinity for carbon. * *The steel suffers almost no consequences, but the cutting edge of the diamond is rounded quickly, rendering the wheel less capable of cutting. More pressure is applied to overcome the problem, raising the temperature ever higher, degrading the diamond more severely. * Norton has performed extensive testing and has documented the failure of diamond when applied to steel at high temperatures. When you use the wheel for re-sharpening brazed tooling, insure that you have used an aluminum oxide wheel to relieve the steel to the side and below the carbide insert. * You can do that easily by grinding a relief angle that is slightly greater than the desired relief angles of the carbide tool. Harold Thank you. Is there any reason not to mount aluminum oxide on one end and carbide on the other? I think they're 6" wheels. V |
#22
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Oct 22, 2:33*pm, wrote:
On Oct 22, 2:15*pm, "Harold and Susan Vordos" wrote: "Vernon" wrote in message .... snip---- I suddenly remembered that the brand is "Hammond of Kalamazoo". *Here is an ebay ad for one similar, but not identical, to mine. I'm going to assume that the model *you have is also a high speed machine---where the diamond wheel rotates above a couple hundred RPM. *by the way, Hammond is a well respected builder of diamond grinding machines. You are fortunate to have one of them. Do NOT use the diamond wheel on steel of any description. * *As DoN mentioned, diamond, at high temperature, is destroyed when used for grinding steel, which has an affinity for carbon. * *The steel suffers almost no consequences, but the cutting edge of the diamond is rounded quickly, rendering the wheel less capable of cutting. More pressure is applied to overcome the problem, raising the temperature ever higher, degrading the diamond more severely. * Norton has performed extensive testing and has documented the failure of diamond when applied to steel at high temperatures. When you use the wheel for re-sharpening brazed tooling, insure that you have used an aluminum oxide wheel to relieve the steel to the side and below the carbide insert. * You can do that easily by grinding a relief angle that is slightly greater than the desired relief angles of the carbide tool. Harold Thank you. *Is there any reason not to mount aluminum oxide on one end and carbide on the other? *I think they're 6" wheels. *V- Hide quoted text - - Show quoted text - Er.. diamond wheel. Not carbide. V |
#23
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Oct 22, 3:35*pm, wrote:
... Thank you. *Is there any reason not to mount aluminum oxide on one end and [diamond wheel] on the other? *I think they're 6" wheels. *V- IIRC the used Baldor tool grinders I've examined generally had a well- worn carbide face wheel on the right side and less-used diamond on the left. I don't recall aluminum wheels on any but freehand grinders, again with the coarse wheel on the right and fine Al or SiC on the left. I was never willing to bid anywhere near the price the tool grinders went for. I don't want to argue with Harold and/or Susan, but using the SiC wheel to lightly polish HSS and carefully finish wood tools hasn't seemed to injure it for carbide lathe bits. Jim Wilkins |
#24
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
What's that Lassie? You say that Doug White fell down the old
rec.crafts.metalworking mine and will die if we don't mount a rescue by Wed, 22 Oct 2008 00:15:57 GMT: Sounds like it could be a Glendo. Very nice & very useful. Does it looks like one of these? http://www.accu-finish.com They run at a slow speed, and can be used for steel as well as carbide. The tool rest mak s it possible to grind special bits to accurate & repeatable angles. We have one of those at work. I use it to make custom tooling from standard brazed carbide inserts. I also use it to turn standard inserts into wiper inserts. They are expensive, but worth it for a job shop. -- Dan H. |
#25
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Harold and Susan Vordos" wrote in message The steel suffers almost no consequences, but the cutting edge of the diamond is rounded quickly, rendering the wheel less capable of cutting. Harold How can this wheel be repaired? Any easy way? Even possible? phil |
#26
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Phil Kangas" wrote in message
... "Harold and Susan Vordos" wrote in message The steel suffers almost no consequences, but the cutting edge of the diamond is rounded quickly, rendering the wheel less capable of cutting. Harold How can this wheel be repaired? Any easy way? Even possible? phil Resinoid bonded diamond wheels are commonly dressed with aluminum oxide dressing sticks. They're quite fine, something like 180 grit, and are generally large. You're likely to find one that's one inch square and six inches long. I've seen them white in color, and also black, which I suspect is made of silicon carbide. Do a search for dressing sticks for diamond wheels. Major machine shop supply houses sell them. They restore the wheel readily, but you lose a little of the wheel in the process. Use it sparingly, and avoid grinding steel so you get maximum life from the wheel. A small portion of the bonding agent is removed, freeing the dulled diamond bits and exposing new ones. There is little you can do to restore the dulled diamond bits aside from removing them. A decent wheel, 100% concentration and 1/8" thickness should last a person for a life-time, assuming it's used in the hobby shop. They last several years when worked commercially, assuming they're well cared for. Harold |
#27
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Jim Wilkins" wrote in message ... On Oct 22, 3:35 pm, wrote: ... Thank you. Is there any reason not to mount aluminum oxide on one end and [diamond wheel] on the other? I think they're 6" wheels. V- IIRC the used Baldor tool grinders I've examined generally had a well- worn carbide face wheel on the right side and less-used diamond on the left. I don't recall aluminum wheels on any but freehand grinders, again with the coarse wheel on the right and fine Al or SiC on the left. I was never willing to bid anywhere near the price the tool grinders went for. I don't want to argue with Harold and/or Susan, but using the SiC wheel to lightly polish HSS and carefully finish wood tools hasn't seemed to injure it for carbide lathe bits. Jim Wilkins It isn't a matter of injuring the wheel. It can be dressed to restore it's cutting capabilities. It's a matter of understanding that the wheel is not cutting properly. Said another way, it's bad practice. On the other hand, it's your wheel and your material -----so if you feel it's serving a purpose that couldn't be better served by applying what is considered better practice, by all means continue the course. My purpose in commenting is to alert readers that silicon carbide wheels are not advised for steel. They perform poorly when so applied, but if you don't know the first thing about grinding, you likely don't understand they're not working properly. Were you to apply the wheel to carbon steel, it would border on the impossible to keep the wheel from drawing the hardness. You're fortunate to be grinding on HSS, which is difficult to anneal. I still don't recommend the process. Harold |
#28
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Harold and Susan Vordos" wrote in message "Phil Kangas" wrote in message "Harold and Susan Vordos" wrote in message The steel suffers almost no consequences, but the cutting edge of the diamond is rounded quickly, rendering the wheel less capable of cutting. Harold How can this wheel be repaired? Any easy way? Even possible? phil Resinoid bonded diamond wheels are commonly dressed with aluminum oxide dressing sticks. They're quite fine, something like 180 grit, and are generally large. You're likely to find one that's one inch square and six inches long. I've seen them white in color, and also black, which I suspect is made of silicon carbide. Do a search for dressing sticks for diamond wheels. Major machine shop supply houses sell them. They restore the wheel readily, but you lose a little of the wheel in the process. Use it sparingly, and avoid grinding steel so you get maximum life from the wheel. A small portion of the bonding agent is removed, freeing the dulled diamond bits and exposing new ones. There is little you can do to restore the dulled diamond bits aside from removing them. A decent wheel, 100% concentration and 1/8" thickness should last a person for a life-time, assuming it's used in the hobby shop. They last several years when worked commercially, assuming they're well cared for. Harold Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I've caught visitors grinding their pocket knives on it while I was welding something for them. Spank spank! Grrrrr.... phil |
#29
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Diamond wheel tool grinder
On Oct 22, 10:28*pm, "Harold and Susan Vordos" wrote:
... Were you to apply the wheel to carbon steel, it would border on the impossible to keep the wheel from drawing the hardness. * You're fortunate to be grinding on HSS, which is difficult to anneal. I still don't recommend the process. Harold I can grind a plane blade or wood chisel on it, just to finish the edge after shaping them on the A36 wheel, without burning. Maybe it works because I grind steel on SiC so rarely, lightly and briefly and the usual carbide lathe bits maintain its condition. If I had the space for another grinder I wouldn't do it. This grinder is IN the doorway to the shop, pushed back against the door frame. Jim Wilkins |
#30
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Jim Wilkins" wrote in message ... On Oct 22, 10:28 pm, "Harold and Susan Vordos" wrote: ... Were you to apply the wheel to carbon steel, it would border on the impossible to keep the wheel from drawing the hardness. You're fortunate to be grinding on HSS, which is difficult to anneal. I still don't recommend the process. Harold I can grind a plane blade or wood chisel on it, just to finish the edge after shaping them on the A36 wheel, without burning. Maybe it works because I grind steel on SiC so rarely, lightly and briefly and the usual carbide lathe bits maintain its condition. ***That's entirely possible. If you use it very briefly, it will act more as a burnishing tool than a grinder. The surface finish will not be ragged because it doesn't cut well. The dulling comes almost instantly----very evident if you're trying a cut on a surface grinder, for example. If you can keep the heat down, I sure as hell don't see a lot wrong with the operation. I commend you for your ability----it's not easy even with an aluminum oxide wheel. If it ain't broke, don't fix it. Harold |
#31
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Phil Kangas" wrote in message ... snip---- Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I always pick up mine with trepidation, knowing full well it's taking life out of the wheel. Contrary to what you might expect, the diamond wheel cuts the dressing stick quite rapidly. After all, it is diamond. It takes only a brief encounter to restore the wheel surface, so go sparingly and use light pressure, and try to present a broad surface to the wheel to avoid cutting a groove. Once you've used it, you can clearly see the benefit. The ability of the wheel to perform undergoes a shocking transformation. Just rein in your desires to do it often. Run coolant and keep the wheel surface clean and free of contact with steel and you don't have to. A loaded wheel is no better than a dull one. Harold |
#32
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Harold and Susan Vordos" wrote in message "Phil Kangas" wrote in message snip---- Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I always pick up mine with trepidation, knowing full well it's taking life out of the wheel. Contrary to what you might expect, the diamond wheel cuts the dressing stick quite rapidly. After all, it is diamond. It takes only a brief encounter to restore the wheel surface, so go sparingly and use light pressure, and try to present a broad surface to the wheel to avoid cutting a groove. Once you've used it, you can clearly see the benefit. The ability of the wheel to perform undergoes a shocking transformation. Just rein in your desires to do it often. Run coolant and keep the wheel surface clean and free of contact with steel and you don't have to. A loaded wheel is no better than a dull one. Harold Oh man, good thing you weren't here yesterday when I 'cleaned' mine, you would've kicked my butt! harhar.... I'll go more lightly next time, eih? I'm old but I can still learn this. I'll be 62 next April and retired then. Gonna still chase this hobby though, so much fun!! phil |
#33
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Diamond wheel tool grinder
On Fri, 24 Oct 2008 08:04:38 GMT, "Harold and Susan Vordos"
wrote: "Jim Wilkins" wrote in message ... On Oct 22, 10:28 pm, "Harold and Susan Vordos" wrote: ... Were you to apply the wheel to carbon steel, it would border on the impossible to keep the wheel from drawing the hardness. You're fortunate to be grinding on HSS, which is difficult to anneal. I still don't recommend the process. Harold I can grind a plane blade or wood chisel on it, just to finish the edge after shaping them on the A36 wheel, without burning. Maybe it works because I grind steel on SiC so rarely, lightly and briefly and the usual carbide lathe bits maintain its condition. ***That's entirely possible. If you use it very briefly, it will act more as a burnishing tool than a grinder. The surface finish will not be ragged because it doesn't cut well. The dulling comes almost instantly----very evident if you're trying a cut on a surface grinder, for example. If you can keep the heat down, I sure as hell don't see a lot wrong with the operation. I commend you for your ability----it's not easy even with an aluminum oxide wheel. If it ain't broke, don't fix it. Harold Come to think about it, Drill Doctor uses a diamond wheel quite successfully. Gerry :-)} London, Canada |
#34
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Phil Kangas" wrote in message ... "Harold and Susan Vordos" wrote in message "Phil Kangas" wrote in message snip---- Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I always pick up mine with trepidation, knowing full well it's taking life out of the wheel. Contrary to what you might expect, the diamond wheel cuts the dressing stick quite rapidly. After all, it is diamond. It takes only a brief encounter to restore the wheel surface, so go sparingly and use light pressure, and try to present a broad surface to the wheel to avoid cutting a groove. Once you've used it, you can clearly see the benefit. The ability of the wheel to perform undergoes a shocking transformation. Just rein in your desires to do it often. Run coolant and keep the wheel surface clean and free of contact with steel and you don't have to. A loaded wheel is no better than a dull one. Harold Oh man, good thing you weren't here yesterday when I 'cleaned' mine, you would've kicked my butt! harhar.... I'll go more lightly next time, eih? I'm old but I can still learn this. I'll be 62 next April and retired then. Gonna still chase this hobby though, so much fun!! phil Chuckle! Old, eh? I've been retired since '94, albeit at an early age. I'm 69 now and feel every damned one of those years. Harold |
#35
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On 2008-10-25, Gerald Miller wrote:
Come to think about it, Drill Doctor uses a diamond wheel quite successfully. Actually, the wheel in Drill Doctor is not diamond, I believe that it is CBN (Carbon Boron Nitride). The reason is exactly what Harold stated. I do, however, have a diamond manual knife sharpener that works beautifully, I owned it for many years. The difference is that it is a slow speed, manual process, without heat. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#36
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Diamond wheel tool grinder
On Fri, 24 Oct 2008 21:36:58 -0500, Ignoramus18654
wrote: On 2008-10-25, Gerald Miller wrote: Come to think about it, Drill Doctor uses a diamond wheel quite successfully. Actually, the wheel in Drill Doctor is not diamond, I believe that it is CBN (Carbon Boron Nitride). The reason is exactly what Harold stated. Somehow I got the impression it was diamond, probably from the discussion here several years back when they were first introduced. Whatever it is, I am quite happy with mine. I do, however, have a diamond manual knife sharpener that works beautifully, I owned it for many years. The difference is that it is a slow speed, manual process, without heat. I have several diamond plate sharpeners that I haven't used all that much - too much time on the computer, not enough time being creative. At least that's what SWMBO says. Gerry :-)} London, Canada |
#37
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On Sat, 25 Oct 2008 02:19:48 GMT, "Harold and Susan Vordos"
wrote: "Phil Kangas" wrote in message ... "Harold and Susan Vordos" wrote in message "Phil Kangas" wrote in message snip---- Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I always pick up mine with trepidation, knowing full well it's taking life out of the wheel. Contrary to what you might expect, the diamond wheel cuts the dressing stick quite rapidly. After all, it is diamond. It takes only a brief encounter to restore the wheel surface, so go sparingly and use light pressure, and try to present a broad surface to the wheel to avoid cutting a groove. Once you've used it, you can clearly see the benefit. The ability of the wheel to perform undergoes a shocking transformation. Just rein in your desires to do it often. Run coolant and keep the wheel surface clean and free of contact with steel and you don't have to. A loaded wheel is no better than a dull one. Harold Oh man, good thing you weren't here yesterday when I 'cleaned' mine, you would've kicked my butt! harhar.... I'll go more lightly next time, eih? I'm old but I can still learn this. I'll be 62 next April and retired then. Gonna still chase this hobby though, so much fun!! phil Chuckle! Old, eh? I've been retired since '94, albeit at an early age. I'm 69 now and feel every damned one of those years. Harold Copy cat! You're my twin 9 May '39 Gerry :-)} London, Canada |
#38
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
On 2008-10-25, Gerald Miller wrote:
On Fri, 24 Oct 2008 21:36:58 -0500, Ignoramus18654 wrote: On 2008-10-25, Gerald Miller wrote: Come to think about it, Drill Doctor uses a diamond wheel quite successfully. Actually, the wheel in Drill Doctor is not diamond, I believe that it is CBN (Carbon Boron Nitride). The reason is exactly what Harold stated. Somehow I got the impression it was diamond, probably from the discussion here several years back when they were first introduced. Whatever it is, I am quite happy with mine. I am very happy with mine, that is, since I understood how to use it. I do, however, have a diamond manual knife sharpener that works beautifully, I owned it for many years. The difference is that it is a slow speed, manual process, without heat. I have several diamond plate sharpeners that I haven't used all that much - too much time on the computer, not enough time being creative. At least that's what SWMBO says. She might mean by that something other than pulling the knife back and forth on the sharpening stone. -- Due to extreme spam originating from Google Groups, and their inattention to spammers, I and many others block all articles originating from Google Groups. If you want your postings to be seen by more readers you will need to find a different means of posting on Usenet. http://improve-usenet.org/ |
#39
Posted to rec.crafts.metalworking
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Diamond wheel tool grinder
"Gerald Miller" wrote in message ... On Sat, 25 Oct 2008 02:19:48 GMT, "Harold and Susan Vordos" wrote: "Phil Kangas" wrote in message ... "Harold and Susan Vordos" wrote in message "Phil Kangas" wrote in message snip---- Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I always pick up mine with trepidation, knowing full well it's taking life out of the wheel. Contrary to what you might expect, the diamond wheel cuts the dressing stick quite rapidly. After all, it is diamond. It takes only a brief encounter to restore the wheel surface, so go sparingly and use light pressure, and try to present a broad surface to the wheel to avoid cutting a groove. Once you've used it, you can clearly see the benefit. The ability of the wheel to perform undergoes a shocking transformation. Just rein in your desires to do it often. Run coolant and keep the wheel surface clean and free of contact with steel and you don't have to. A loaded wheel is no better than a dull one. Harold Oh man, good thing you weren't here yesterday when I 'cleaned' mine, you would've kicked my butt! harhar.... I'll go more lightly next time, eih? I'm old but I can still learn this. I'll be 62 next April and retired then. Gonna still chase this hobby though, so much fun!! phil Chuckle! Old, eh? I've been retired since '94, albeit at an early age. I'm 69 now and feel every damned one of those years. Harold Copy cat! You're my twin 9 May '39 Gerry :-)} London, Canada The hell you say! July 14 for me. How you holding up, Gerry? Harold |
#40
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Diamond wheel tool grinder
On Sat, 25 Oct 2008 07:31:57 GMT, "Harold and Susan Vordos"
wrote: "Gerald Miller" wrote in message .. . On Sat, 25 Oct 2008 02:19:48 GMT, "Harold and Susan Vordos" wrote: "Phil Kangas" wrote in message ... "Harold and Susan Vordos" wrote in message "Phil Kangas" wrote in message snip---- Thanks Harold. I have one of these sticks and was wondering if they were really the right thing to use. I always pick up mine with trepidation, knowing full well it's taking life out of the wheel. Contrary to what you might expect, the diamond wheel cuts the dressing stick quite rapidly. After all, it is diamond. It takes only a brief encounter to restore the wheel surface, so go sparingly and use light pressure, and try to present a broad surface to the wheel to avoid cutting a groove. Once you've used it, you can clearly see the benefit. The ability of the wheel to perform undergoes a shocking transformation. Just rein in your desires to do it often. Run coolant and keep the wheel surface clean and free of contact with steel and you don't have to. A loaded wheel is no better than a dull one. Harold Oh man, good thing you weren't here yesterday when I 'cleaned' mine, you would've kicked my butt! harhar.... I'll go more lightly next time, eih? I'm old but I can still learn this. I'll be 62 next April and retired then. Gonna still chase this hobby though, so much fun!! phil Chuckle! Old, eh? I've been retired since '94, albeit at an early age. I'm 69 now and feel every damned one of those years. Harold Copy cat! You're my twin 9 May '39 Gerry :-)} London, Canada The hell you say! July 14 for me. How you holding up, Gerry? Harold Well, you're 11 yrs. older than me, but almost 20 younger than Dad. He's finally slowing down. Transient ischemic attacks are blowing little chunks of memory, but he still gets outside to cut limbs, kill weeds, and mow. Pete Keillor |
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