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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
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Sharpen ceramic knife
My $5.00 ceramic knife has lost it's razor edge after about 6 months of
daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? |
#2
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Sharpen ceramic knife
On Sat, 20 Dec 2014 13:19:19 -0500, Tom Gardner
wrote: My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? The same way they sharpen ceramic cutting inserts: Buy new ones. -- Ed Huntress |
#3
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Sharpen ceramic knife
Tom Gardner prodded the keyboard
My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Diamond abrasives will sharpen ceramic knives ! They use diamond wheels to sharpen them in the first place. -- Best Regards: Baron. |
#4
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Sharpen ceramic knife
On Saturday, December 20, 2014 10:30:32 AM UTC-8, Baron wrote:
Tom Gardner prodded the keyboard My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Diamond abrasives will sharpen ceramic knives ! They use diamond wheels to sharpen them in the first place. -- Best Regards: Baron. Perhaps others will find How Kyocera does it helpful: https://www.youtube.com/watch?v=Oqn7vcByIgo |
#5
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Sharpen ceramic knife
On 12/20/2014 1:21 PM, Ed Huntress wrote:
On Sat, 20 Dec 2014 13:19:19 -0500, Tom Gardner wrote: My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? The same way they sharpen ceramic cutting inserts: Buy new ones. Fine for the $5 knife I got at Aldi's but one could make a substantial investment in ceramic knives. Are you saying to stay away from Ceramic? I have a few Stainless Steel knives and I don't like them, I prefer carbon steel knives and I know how to care for them. But the ceramic one I have I just loved while it was razor sharp. |
#6
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Sharpen ceramic knife
On Sat, 20 Dec 2014 13:40:15 -0500, Tom Gardner
wrote: On 12/20/2014 1:21 PM, Ed Huntress wrote: On Sat, 20 Dec 2014 13:19:19 -0500, Tom Gardner wrote: My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? The same way they sharpen ceramic cutting inserts: Buy new ones. Fine for the $5 knife I got at Aldi's but one could make a substantial investment in ceramic knives. Are you saying to stay away from Ceramic? No, just be careful with them and don't let them get nicked. Unless you're slicing sausage with sand in it, they take a hell of a long time to get dull. I have a few Stainless Steel knives and I don't like them, I prefer carbon steel knives and I know how to care for them. But the ceramic one I have I just loved while it was razor sharp. Well, maybe you'll find a way to restore them. *Good* diamond hones are so friggin' expensive in all but the smallest sizes that I avoid them -- or anything that requires them to sharpen. Maybe silicon carbide is hard enough; I don't know. Anyway, remember that you don't have to worry about burrs, so you can drag the edge across a stone, rather than pushing into it. I'm with you on carbon steel knives. I have some that are 60 years old or more. My parents sold Sabatier (plain carbon) and Zanger (440 ss) in their store, so I have some really fine kitchen knives. And at least 30 sharpening stones. g -- Ed Huntress |
#7
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Sharpen ceramic knife
On Saturday, December 20, 2014 10:30:32 AM UTC-8, Baron wrote:
Tom Gardner prodded the keyboard My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Diamond abrasives will sharpen ceramic knives ! They use diamond wheels to sharpen them in the first place. -- Best Regards: Baron. Never used this device but it or something else with diamond abrasives like you mention will work: http://youtu.be/jVPiACZUPoI http://tinyurl.com/qj5a235 |
#8
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Sharpen ceramic knife
On Sat, 20 Dec 2014 13:40:15 -0500, Tom Gardner
wrote: On 12/20/2014 1:21 PM, Ed Huntress wrote: On Sat, 20 Dec 2014 13:19:19 -0500, Tom Gardner wrote: My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? The same way they sharpen ceramic cutting inserts: Buy new ones. Fine for the $5 knife I got at Aldi's but one could make a substantial investment in ceramic knives. Are you saying to stay away from Ceramic? I have a few Stainless Steel knives and I don't like them, I prefer carbon steel knives and I know how to care for them. But the ceramic one I have I just loved while it was razor sharp. ==================== for how to videos see http://tinyurl.com/nmf467p For use rather than show you may be better off using commercial food prep cutlery. The new "high carbon stainless" takes a fine edge, and the less expensive lines such as Mercer [made in Taiwan using German HCSS steel] seem to be a very good value. Mercer is sold in the restaurant supply stores and not the big box outlets. http://tinyurl.com/ku3lmdp I have dealt with webstaurant and have found them to be reliable and easy to do business with. http://www.webstaurantstore.com/ I particularly like the Mercer wide chefs knife and the straight boning knife for food prep. Suggest buying the blade guards and cutting sheet at the same time to protect the knives. http://tinyurl.com/odn4vrc http://tinyurl.com/k3he9cr http://tinyurl.com/l65d8d4 http://tinyurl.com/mpsjnpo http://tinyurl.com/ks2q2l3 -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" |
#9
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Sharpen ceramic knife
On Saturday, December 20, 2014 1:51:04 PM UTC-5, Ed Huntress wrote:
Well, maybe you'll find a way to restore them. *Good* diamond hones are so friggin' expensive in all but the smallest sizes that I avoid them -- or anything that requires them to sharpen. Diamond abrasives used to be expensive, but they seem to be fairly cheap now. I have a couple of the Eze-Lap hones that I have had for years. The cost of them now is about the same as I paid. But taking inflation into account, they are now about half the price. http://eze-lap.com/hunting_fishing_o...se/hone-stone/ and ebay item 321469341282. Not bad for about $5 when you add shipping. This site http://www.tedpella.com/company_html/hardness.htm Shows SiC is harder than Zirconia so you can use that. But the diamond is a lot faster. I have some diamond coated stainless disks, most made by Kinik. They were used to flatten silicon wafers and are worn out as far as industry is concerned. At least that is what I suspect as they were in the local scrap yard.. But they still work well. The only problem is they are relatively coarse. Too coarse for sharpening knifes. But back to how to sharpen Ceramic Knifes. Just do the same as sharpening steel knifes. Find of the day. A soft Arkansas stone for twenty five cents at the Habitat for Humanity store. It was dirty and not close to flat, but rubbing it on some sandpaper got it flatter and clean. Dan Maybe silicon carbide is hard enough; I don't know. Anyway, remember that you don't have to worry about burrs, so you can drag the edge across a stone, rather than pushing into it. I'm with you on carbon steel knives. I have some that are 60 years old or more. My parents sold Sabatier (plain carbon) and Zanger (440 ss) in their store, so I have some really fine kitchen knives. And at least 30 sharpening stones. g -- Ed Huntress |
#10
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Sharpen ceramic knife
On Sat, 20 Dec 2014 13:40:15 -0500, Tom Gardner
wrote: On 12/20/2014 1:21 PM, Ed Huntress wrote: On Sat, 20 Dec 2014 13:19:19 -0500, Tom Gardner wrote: My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? The same way they sharpen ceramic cutting inserts: Buy new ones. Fine for the $5 knife I got at Aldi's but one could make a substantial investment in ceramic knives. Are you saying to stay away from Ceramic? I have a few Stainless Steel knives and I don't like them, I prefer carbon steel knives and I know how to care for them. But the ceramic one I have I just loved while it was razor sharp. What are you doing to these poor things to dull them, Tawm? I quickly realized that I couldn't use them to wedge chicken thighs from their sockets (chip), and I broke my ceramic chef's knife by trying to cut a sweet potato with it. As it broke through the halfway point and the potato gave way, the knife snapped in half on the poly cutting board. I learned a hard ($25) lesson there. The ceramic paring knife doesn't seem to ever dull, though. I like the relative coarseness of the 600 grit diamond plates for all my carbon steel knives, but prefer the 1200 grit diamond for ceramic. The 600 roughed out the chip, and the 1200 sharpened it. Even with the diamond, it takes forever. But because they stay so sharp for so long, I have little experience sharpening ceramic. -- With every experience, you alone are painting your own canvas, thought by thought, choice by choice. -- Oprah Winfrey |
#11
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Sharpen ceramic knife
Tom Gardner wrote:
My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Diamond wheel or flat hone. Sharpen like any other knife. -- Steve W. |
#12
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Sharpen ceramic knife
On Saturday, December 20, 2014 10:21:27 AM UTC-8, slow eddy got it wrong again:
The same way they sharpen ceramic cutting inserts: Buy new ones. -- Ed Huntress slow eddy, self-proclaimed expert at everything, gets it wrong again. I'm shocked, just shocked I tell you. :) BBBBBBBBBBBBBBBBWWWWWWWWWWWWWWWWWWWWWAAAAAAAAAAAAA AAAAAAAAAAAAAaaaaaaaaaaaaa |
#13
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Sharpen ceramic knife
On Sat, 20 Dec 2014 13:48:17 -0800 (PST), "
wrote: On Saturday, December 20, 2014 1:51:04 PM UTC-5, Ed Huntress wrote: Well, maybe you'll find a way to restore them. *Good* diamond hones are so friggin' expensive in all but the smallest sizes that I avoid them -- or anything that requires them to sharpen. Diamond abrasives used to be expensive, but they seem to be fairly cheap now. I have a couple of the Eze-Lap hones that I have had for years. The cost of them now is about the same as I paid. But taking inflation into account, they are now about half the price. http://eze-lap.com/hunting_fishing_o...se/hone-stone/ Well, maybe that's worth a try. I picked up some samples of diamond hones at IMTS a few years back, and I've used them for honing WC brazed-tip tools. They look like a narrower version of those you've linked to. They're OK, but I'd want a larger stone for working on knives. and ebay item 321469341282. Not bad for about $5 when you add shipping. This site http://www.tedpella.com/company_html/hardness.htm Shows SiC is harder than Zirconia so you can use that. But the diamond is a lot faster. Hmm. It's worth a try. If you've ever ground carbide tools with a green wheel (SiC), you've probably noticed that you don't get a great edge, and that the wheel wears pretty fast. But it may work better honing by hand. Tom should give it a try and let us know. I have some diamond coated stainless disks, most made by Kinik. They were used to flatten silicon wafers and are worn out as far as industry is concerned. At least that is what I suspect as they were in the local scrap yard. But they still work well. The only problem is they are relatively coarse. Too coarse for sharpening knifes. But back to how to sharpen Ceramic Knifes. Just do the same as sharpening steel knifes. Find of the day. A soft Arkansas stone for twenty five cents at the Habitat for Humanity store. It was dirty and not close to flat, but rubbing it on some sandpaper got it flatter and clean. Dan Good. I love tose, and have quite a few in different degrees of hardness and grit. That's what I use for most of my cutting edges. -- Ed Huntress |
#14
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Sharpen ceramic knife
"Tom Gardner" wrote in message ...
My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? I'm not sure if it would work on ceramic knives, but I made a leather belt for my HF 1X30 belt sander and made a power hone. If it was charged with some ultra fine diamond compound, it might be great for sharpening ceramic knives. I'm guessing the compounds for steel wouldn't work on ceramic, haven't tried though. RogerN |
#15
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Sharpen ceramic knife
On Saturday, December 20, 2014 8:04:56 PM UTC-5, Ed Huntress wrote:
Well, maybe that's worth a try. I picked up some samples of diamond hones at IMTS a few years back, and I've used them for honing WC brazed-tip tools. They look like a narrower version of those you've linked to. They're OK, but I'd want a larger stone for working on knives. It sounds as if you are well fixed for sharpening stones, but if you want a diamond sharpening stone look on Ebay. I think the Chinese military encouraged the manufacture of diamond coated tools. At any rate there is a large variety of diamond coated things on Ebay. This site http://www.tedpella.com/company_html/hardness.htm Shows SiC is harder than Zirconia so you can use that. But the diamond is a lot faster. Hmm. It's worth a try. If you've ever ground carbide tools with a green wheel (SiC), you've probably noticed that you don't get a great edge, and that the wheel wears pretty fast. But it may work better honing by hand. Tom should give it a try and let us know. SiC does not work real well for honing carbide by hand. Although the SiC is hard enough, it is not strong enough. Dan -- Ed Huntress |
#16
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Sharpen ceramic knife
On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress
wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" |
#17
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Sharpen ceramic knife
On Saturday, December 20, 2014 8:39:03 PM UTC-8, F. George McDuffee wrote:
On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" I ****ing hate using those types of sharpeners. Their just not as good as EZE-LAPS: http://tinyurl.com/klh5wu9 |
#18
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Sharpen ceramic knife
On Sat, 20 Dec 2014 22:39:00 -0600, F. George McDuffee
wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo Thanks, George. Maybe I'll break down and give them a try. The price is right. You can pay a lot more than that for a hard Arkansas stone. I have a couple of 6" x 2" stones, and they sell for over $40 each now. -- Ed Huntress |
#19
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Sharpen ceramic knife
On Sat, 20 Dec 2014 18:36:29 -0800 (PST), "
wrote: On Saturday, December 20, 2014 8:04:56 PM UTC-5, Ed Huntress wrote: Well, maybe that's worth a try. I picked up some samples of diamond hones at IMTS a few years back, and I've used them for honing WC brazed-tip tools. They look like a narrower version of those you've linked to. They're OK, but I'd want a larger stone for working on knives. It sounds as if you are well fixed for sharpening stones, but if you want a diamond sharpening stone look on Ebay. I think the Chinese military encouraged the manufacture of diamond coated tools. At any rate there is a large variety of diamond coated things on Ebay. This site http://www.tedpella.com/company_html/hardness.htm Shows SiC is harder than Zirconia so you can use that. But the diamond is a lot faster. Hmm. It's worth a try. If you've ever ground carbide tools with a green wheel (SiC), you've probably noticed that you don't get a great edge, and that the wheel wears pretty fast. But it may work better honing by hand. Tom should give it a try and let us know. SiC does not work real well for honing carbide by hand. Although the SiC is hard enough, it is not strong enough. Dan -- Ed Huntress I'll give one a try when I can. Norton is a source I contact every week. I should see if they have any discounts. The list price on their diamond bench stones is over the top, for me. -- Ed Huntress |
#20
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Sharpen ceramic knife
On Sun, 21 Dec 2014 00:06:14 -0500, Ed Huntress
wrote: On Sat, 20 Dec 2014 22:39:00 -0600, F. George McDuffee wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo Thanks, George. Maybe I'll break down and give them a try. The price is right. You can pay a lot more than that for a hard Arkansas stone. I have a couple of 6" x 2" stones, and they sell for over $40 each now. ======================= If you need to reprofile the knife see http://tinyurl.com/lfulfck this also works very well on the new harder steel knives. If you try this be sure to get the post mount as these are almost impossible to use otherwise. http://tinyurl.com/ng77xyg [not necesary to screw down] c-clamp version http://tinyurl.com/k4ncknx For a super fine edge, Lansky sells just the stone holders and you can hot melt or epoxy a ultrafine diamond hone. http://tinyurl.com/pajgnoh -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" |
#21
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Sharpen ceramic knife
On Sat, 20 Dec 2014 22:39:00 -0600, F. George McDuffee
wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo I doubt that any stone from HF, despite their claims, goes finer than 300 grit. They're fine for yard tools, but I wouldn't sharpen one of my good knives or woodworking blades on one. It's OK for my pocket knife since that, usually, is relegated to cutting string or cable ties, and opening packages. I keep a set of DMT paddles (1x2.5") in the truck and have 2x6 hones at home. http://tinyurl.com/klll5dy http://tinyurl.com/kadnubr and http://eze-lap.com/ Go with DMT (best) or EzeLap (better) over HF (cheap/inconsistent). The Eze seemed coarser at first, then got finer, while the DMT hasn't changed in 20 years. Amazon has great deals on them. eBay has outstanding deals on them on occasion. Buy a diamond hone and keep/use it forever. -- With every experience, you alone are painting your own canvas, thought by thought, choice by choice. -- Oprah Winfrey |
#22
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Sharpen ceramic knife
On Sat, 20 Dec 2014 23:52:27 -0600, F. George McDuffee
wrote: On Sun, 21 Dec 2014 00:06:14 -0500, Ed Huntress wrote: On Sat, 20 Dec 2014 22:39:00 -0600, F. George McDuffee wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo Thanks, George. Maybe I'll break down and give them a try. The price is right. You can pay a lot more than that for a hard Arkansas stone. I have a couple of 6" x 2" stones, and they sell for over $40 each now. ======================= If you need to reprofile the knife see http://tinyurl.com/lfulfck this also works very well on the new harder steel knives. "Special honing oil" with a diamond hone? chuckle Whatever floats their boat. shrug -- With every experience, you alone are painting your own canvas, thought by thought, choice by choice. -- Oprah Winfrey |
#23
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Sharpen ceramic knife
On 12/20/2014 11:39 PM, F. George McDuffee wrote:
On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo Nice! Will order. |
#24
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Sharpen ceramic knife
On 12/20/2014 11:59 PM, jon_banquer wrote:
On Saturday, December 20, 2014 8:39:03 PM UTC-8, F. George McDuffee wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" I ****ing hate using those types of sharpeners. Their just not as good as EZE-LAPS: http://tinyurl.com/klh5wu9 Why are they better? Other than some are bigger. |
#25
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Sharpen ceramic knife
On 12/20/2014 9:18 PM, RogerN wrote:
"Tom Gardner" wrote in message ... My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? I'm not sure if it would work on ceramic knives, but I made a leather belt for my HF 1X30 belt sander and made a power hone. If it was charged with some ultra fine diamond compound, it might be great for sharpening ceramic knives. I'm guessing the compounds for steel wouldn't work on ceramic, haven't tried though. RogerN Great idea! |
#26
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Sharpen ceramic knife
On Sunday, December 21, 2014 11:40:34 AM UTC-8, Tom Gardner wrote:
On 12/20/2014 11:59 PM, jon_banquer wrote: On Saturday, December 20, 2014 8:39:03 PM UTC-8, F. George McDuffee wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo -- Unka' George "Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants, but debt is the money of slaves" -Norm Franz, "Money and Wealth in the New Millenium" I ****ing hate using those types of sharpeners. Their just not as good as EZE-LAPS: http://tinyurl.com/klh5wu9 Why are they better? Other than some are bigger. DMT uses less abrasive material so they can sell their product cheaper. They use a metal mesh to surround the spots of diamonds and falsely claim that this helps to prevent clogging. What the metal mesh design really does is make the job harder and take longer. |
#27
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Sharpen ceramic knife
On Sunday, December 21, 2014 5:12:49 PM UTC-5, jon_banquer wrote:
Why are they better? Other than some are bigger. DMT uses less abrasive material so they can sell their product cheaper. They use a metal mesh to surround the spots of diamonds and falsely claim that this helps to prevent clogging. What the metal mesh design really does is make the job harder and take longer. I do not like the ones with holes. They do not work well to put a sharp edge on a small thing as a carbide insert. Clogging is not really a problem. If you use water with some dish detergent you do not get clogging. If you use it without anything to float the metal bits away, then using a light wire brush or a regular tooth brush and some soapy water will unclog it. Dan |
#28
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Sharpen ceramic knife
On Sunday, December 21, 2014 7:33:45 PM UTC-8, wrote:
On Sunday, December 21, 2014 5:12:49 PM UTC-5, jon_banquer wrote: Why are they better? Other than some are bigger. DMT uses less abrasive material so they can sell their product cheaper. They use a metal mesh to surround the spots of diamonds and falsely claim that this helps to prevent clogging. What the metal mesh design really does is make the job harder and take longer. I do not like the ones with holes. They do not work well to put a sharp edge on a small thing as a carbide insert. Clogging is not really a problem. If you use water with some dish detergent you do not get clogging. If you use it without anything to float the metal bits away, then using a light wire brush or a regular tooth brush and some soapy water will unclog it. Dan Right on all counts. There is a reason Tom Gardner and many others can't stop reading what I post. |
#29
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On Sunday, December 21, 2014 11:38:32 AM UTC-8, Tom Gardner wrote:
On 12/20/2014 11:39 PM, F. George McDuffee wrote: On Sat, 20 Dec 2014 20:04:51 -0500, Ed Huntress wrote: They're OK, but I'd want a larger stone for working on knives. http://tinyurl.com/cuhqpe4 http://tinyurl.com/mnodtvo Nice! Will order. You now have someone else who agrees with what I have to say about not buying these garbage sharpeners. Think of the trouble and frustration I saved you. At least you were smart enough to put your German pride aside to ask your Zionist Jew enemy for clarification. http://www.dailymail.co.uk/news/arti...an-claims.html |
#30
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On 12/21/2014 10:54 PM, jon_banquer wrote:
DMT uses less abrasive material so they can sell their product cheaper. They use a metal mesh to surround the spots of diamonds and falsely claim that this helps to prevent clogging. What the metal mesh design really does is make the job harder and take longer. I do not like the ones with holes. They do not work well to put a sharp edge on a small thing as a carbide insert. Clogging is not really a problem. If you use water with some dish detergent you do not get clogging. If you use it without anything to float the metal bits away, then using a light wire brush or a regular tooth brush and some soapy water will unclog it. Dan Right on all counts. There is a reason Tom Gardner and many others can't stop reading what I post. When you are civil. |
#31
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Sharpen ceramic knife
On 12/20/2014 1:21 PM, Ed Huntress wrote:
The same way they sharpen ceramic cutting inserts: Buy new ones. go Using mw diamond lap I have put a nice edge on the knife. Now I have the "feel" for it and a methodology. After some thought, I won't be investing in more ceramic knives, good ones are expensive! I have a couple of very good French made carbon steel knives from 30 years ago and I have no new requirements. Maybe if I were to do Sushi or such. But the on e I have is handy and it has impressed me. |
#32
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On Mon, 22 Dec 2014 09:26:46 -0500, Tom Gardner
wrote: On 12/20/2014 1:21 PM, Ed Huntress wrote: The same way they sharpen ceramic cutting inserts: Buy new ones. go Using mw diamond lap I have put a nice edge on the knife. Now I have the "feel" for it and a methodology. After some thought, I won't be investing in more ceramic knives, good ones are expensive! I have a couple of very good French made carbon steel knives from 30 years ago and I have no new requirements. Maybe if I were to do Sushi or such. But the on e I have is handy and it has impressed me. I'll have to get a cheap one to try some time. People I know who have them either love them or hate them. But I don't know many people who know how to sharpen a steel knife. I'm well equipped for that. Hey, since you're a tomater grower, here's Ed's Tomato Knife sharpening tip: "Friends, do your tomatoes mush when you try to slice them clean? Do even your sharpest knives balk on a tough tomato skin? "Well, mush no more! Take the cheapest, dime-store stainless slicer (at least medium-length) in your drawer, and give it a few strokes with the coarsest bench stone you have. Don't try to refine the endge. Don't stroke it on a sharpening steel. You want a fine-toothed saw. "It will go through those skins like they weren't even there, and it will slice your tomatoes clean. Don't use it for anything else, and it will last through a couple of seasons before you have to stroke it again." -- Ed Huntress |
#33
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
"Ed Huntress" wrote in message
... On Mon, 22 Dec 2014 09:26:46 -0500, Tom Gardner wrote: On 12/20/2014 1:21 PM, Ed Huntress wrote: The same way they sharpen ceramic cutting inserts: Buy new ones. go Using mw diamond lap I have put a nice edge on the knife. Now I have the "feel" for it and a methodology. After some thought, I won't be investing in more ceramic knives, good ones are expensive! I have a couple of very good French made carbon steel knives from 30 years ago and I have no new requirements. Maybe if I were to do Sushi or such. But the on e I have is handy and it has impressed me. I'll have to get a cheap one to try some time. People I know who have them either love them or hate them. But I don't know many people who know how to sharpen a steel knife. I'm well equipped for that. Hey, since you're a tomater grower, here's Ed's Tomato Knife sharpening tip: "Friends, do your tomatoes mush when you try to slice them clean? Do even your sharpest knives balk on a tough tomato skin? "Well, mush no more! Take the cheapest, dime-store stainless slicer (at least medium-length) in your drawer, and give it a few strokes with the coarsest bench stone you have. Don't try to refine the endge. Don't stroke it on a sharpening steel. You want a fine-toothed saw. "It will go through those skins like they weren't even there, and it will slice your tomatoes clean. Don't use it for anything else, and it will last through a couple of seasons before you have to stroke it again." -- Ed Huntress A file can put a nasty slashing edge on a knife too. |
#34
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On Monday, December 22, 2014 6:14:52 AM UTC-8, Tom Gardner wrote:
On 12/21/2014 10:54 PM, jon_banquer wrote: DMT uses less abrasive material so they can sell their product cheaper. They use a metal mesh to surround the spots of diamonds and falsely claim that this helps to prevent clogging. What the metal mesh design really does is make the job harder and take longer. I do not like the ones with holes. They do not work well to put a sharp edge on a small thing as a carbide insert. Clogging is not really a problem. If you use water with some dish detergent you do not get clogging. If you use it without anything to float the metal bits away, then using a light wire brush or a regular tooth brush and some soapy water will unclog it. Dan Right on all counts. There is a reason Tom Gardner and many others can't stop reading what I post. When you are civil. Most of time you don't deserve to be treated with respect. |
#35
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On 12/22/2014 12:09 PM, Ed Huntress wrote:
On Mon, 22 Dec 2014 09:26:46 -0500, Tom Gardner wrote: On 12/20/2014 1:21 PM, Ed Huntress wrote: The same way they sharpen ceramic cutting inserts: Buy new ones. go Using mw diamond lap I have put a nice edge on the knife. Now I have the "feel" for it and a methodology. After some thought, I won't be investing in more ceramic knives, good ones are expensive! I have a couple of very good French made carbon steel knives from 30 years ago and I have no new requirements. Maybe if I were to do Sushi or such. But the on e I have is handy and it has impressed me. I'll have to get a cheap one to try some time. People I know who have them either love them or hate them. But I don't know many people who know how to sharpen a steel knife. I'm well equipped for that. Hey, since you're a tomater grower, here's Ed's Tomato Knife sharpening tip: "Friends, do your tomatoes mush when you try to slice them clean? Do even your sharpest knives balk on a tough tomato skin? "Well, mush no more! Take the cheapest, dime-store stainless slicer (at least medium-length) in your drawer, and give it a few strokes with the coarsest bench stone you have. Don't try to refine the endge. Don't stroke it on a sharpening steel. You want a fine-toothed saw. "It will go through those skins like they weren't even there, and it will slice your tomatoes clean. Don't use it for anything else, and it will last through a couple of seasons before you have to stroke it again." Yep! I do similar, the burr is where it's at |
#36
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
jon_banquer wrote:
On Saturday, December 20, 2014 10:30:32 AM UTC-8, Baron wrote: Tom Gardner prodded the keyboard My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Diamond abrasives will sharpen ceramic knives ! They use diamond wheels to sharpen them in the first place. -- Best Regards: Baron. Perhaps others will find How Kyocera does it helpful: https://www.youtube.com/watch?v=Oqn7vcByIgo Yes immediately ordered one of these, http://www.ebay.com.au/itm/281349431... 4.m1439.l2649 Now I have to make a flat rotating disc to mount it on |
#37
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
F Murtz prodded the keyboard
jon_banquer wrote: On Saturday, December 20, 2014 10:30:32 AM UTC-8, Baron wrote: Tom Gardner prodded the keyboard My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Diamond abrasives will sharpen ceramic knives ! They use diamond wheels to sharpen them in the first place. -- Best Regards: Baron. Perhaps others will find How Kyocera does it helpful: https://www.youtube.com/watch?v=Oqn7vcByIgo Yes immediately ordered one of these, http://www.ebay.com.au/itm/281349431... 4.m1439.l2649 Now I have to make a flat rotating disc to mount it on Yes, one of those would work very well ! You will find that its quite rigid but a plastic (prefered) or HDF platter would give extra support. -- Best Regards: Baron. |
#38
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On Mon, 29 Dec 2014 18:16:37 +1100, F Murtz
wrote: jon_banquer wrote: Perhaps others will find How Kyocera does it helpful: https://www.youtube.com/watch?v=Oqn7vcByIgo Yes immediately ordered one of these, http://www.ebay.com.au/itm/281349431... 4.m1439.l2649 Now I have to make a flat rotating disc to mount it on A little more reasonable for most folks. https://www.youtube.com/watch?v=-8jL5vSAYMI John John DeArmond http://www.neon-john.com http://www.fluxeon.com Tellico Plains, Occupied TN See website for email address |
#39
Posted to rec.crafts.metalworking
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Sharpen ceramic knife
On Saturday, December 20, 2014 1:19:27 PM UTC-5, Tom Gardner wrote:
My $5.00 ceramic knife has lost it's razor edge after about 6 months of daily use. I like the knife and will purchase more ceramic knives and get better quality. But, for $5 it was a good introduction. I looked on the web and attempted to sharpen it with the fine/coarse "Smith's" diamond sharpener I have that is about 1" x 4" and has served me well. I only worked on the knife for a few minutes and since I didn't know what I was doing and afraid of doing damage, I stopped. What's the method to correctly sharpen ceramic knives? Well, this guy has it down. Used diamond grit films down to 0.5 micron. Awesome video, too. https://www.youtube.com/watch?v=NjqnkcPIuCY . |
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