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 Re: Knife Sharping
[Re: SkunkHunter]
#589122
09/07/11 10:25 AM
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Joined: Nov 2010
Posts: 606
marthinus
Scrapper
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Scrapper
Joined: Nov 2010
Posts: 606 |
I plainly suck at convexing any edge. Really do, so I do a standard V grind at a low angle so that I can easily apply a micro bevel with ceramic rods much like the Idahone ceramic sharpener being discussed or a lansky diamond paddle. Same principles would apply if the grind was convexed (in my ind at least). I have convexed the kitchen knives etc with a rig I build that I use to make knives with as well, but the problem is the finest grit I have been able to find (others on order) is P100 and the shops think that is classified as FINE sandpaper! This is how it started out, a bit more refined and neater at the moment. ![[Linked Image from i150.photobucket.com]](http://i150.photobucket.com/albums/s90/geronki/2011/P5110087.jpg) I am experimenting a bit in convexing an edge on a normal benchstone. Simple principles are to start at a low angle, and increase the angle slightly as one goes through the grits, and then strop. Heck knows if I am getting it right. The only main issue with the Idahone or most V sharpeners out there is not to let the tip role over the stone, this will cause it to become blunt. That is the only tip I can give here from experience.
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Re: Knife Sharping
[Re: marthinus]
#589123
09/07/11 11:00 AM
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Joined: Apr 2010
Posts: 1,570
sf45acp
OP
Junk Yard Dog
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OP
Junk Yard Dog
Joined: Apr 2010
Posts: 1,570 |
Thanks all for your experiences on the fine art of knife sharping. I greatly appreciate the input and love learning new techniques. When I picked up the ceramic rod kit, I also picked up a strop with a compound. If I was at home, I would give the name of the compound. The strop is a rough side out lamb skin glued onto a holding 10"x1.5" piece of wood. When stropping do I need to be concerned about the number of swipes back and forth? If the blades were low $$$ I would not ask but these are my Yard, Rat, and soon to be Busse blades. Thanks again folks.
History, in general, only informs us of what bad government is. (Thomas Jefferson)
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Re: Knife Sharping
[Re: sf45acp]
#589124
09/07/11 11:39 AM
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Joined: Nov 2010
Posts: 606
marthinus
Scrapper
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Scrapper
Joined: Nov 2010
Posts: 606 |
Mainly try to remove any last burrs on the strop so go even amount of passes on each side on the strop.
I go low angle first with moderate pressure, then as I increase the angle slightly with lighter pressure and finally wit barely the pressure of the blade itself at steeper angle to remove any last burrs.
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Re: Knife Sharping
[Re: marthinus]
#589125
09/07/11 12:53 PM
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Joined: Sep 2006
Posts: 47,314
Private Klink
Junk Yard Dog
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Junk Yard Dog
Joined: Sep 2006
Posts: 47,314 |
,I like your creativity Marty! <img src="/ubbthreads/images/graemlins/wink.gif" alt="" /> <img src="/ubbthreads/images/graemlins/bowdown.gif" alt="" />
Junk Yard Dog #1
Moderator/Leader of the Pack
Good night Mrs. B, wherever you are!
Long Live the Brotherhood of the Yard!
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Re: Knife Sharping
[Re: Private Klink]
#589126
09/07/11 01:32 PM
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Joined: Nov 2006
Posts: 3,265
cazio
Junk Yard Dog
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Junk Yard Dog
Joined: Nov 2006
Posts: 3,265 |
,I like your creativity Marty! <img src="/ubbthreads/images/graemlins/wink.gif" alt="" /> <img src="/ubbthreads/images/graemlins/bowdown.gif" alt="" /> +1 Very creative, whatever gets it done. With that kind of creativity you will be moving up the ladder fast at the new job.
JYD #136
My mother told me if didn't have anything nice to say then don't say anything but that never stopped me before.
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Re: Knife Sharping
[Re: cazio]
#589127
09/07/11 02:28 PM
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Joined: Nov 2010
Posts: 606
marthinus
Scrapper
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Scrapper
Joined: Nov 2010
Posts: 606 |
Thanks for the kind words guys!
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Re: Knife Sharping
[Re: marthinus]
#589128
09/07/11 04:06 PM
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Joined: Jun 2011
Posts: 12,739
gun dog
Junk Yard Dog
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Junk Yard Dog
Joined: Jun 2011
Posts: 12,739 |
If it works who cares what you do. I have seen lots of strange ways of sharpening.
Any day I'm above the grass and I'm not a zombie is a good day! JYD#138
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Re: Knife Sharping
[Re: gun dog]
#589129
09/07/11 04:23 PM
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Joined: Feb 2007
Posts: 14,586
Horn Dog
Junk Yard Dog
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Junk Yard Dog
Joined: Feb 2007
Posts: 14,586 |
If it works who cares what you do. I have seen lots of strange ways of sharpening. That's it. You know how I got started doing convex edges? I bought a cheap Harbor Freight belt sander to do my machetes for yard work. But with the platen in place, there was too much chatter and vibration to do a smooth edge. So I removed the platen. I soon noticed that the edges I ground on my machetes chopped and slashed much better and the edges held up well, too. Because the belt would flex, these edges were convex. Then I read about the expensive Falknivens and Bark Rivers with their convex grinds. I realized that I could do that myself with some practice. And I did.
Horned, dangerous, and off my medication.
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Re: Knife Sharping
[Re: Horn Dog]
#589130
09/07/11 05:02 PM
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Joined: Apr 2010
Posts: 25,595
DogTired
Junk Yard Dog
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Junk Yard Dog
Joined: Apr 2010
Posts: 25,595 |
I think, and this goes with any sharpening system, that you generally want roughly the same number strokes per side. That keeps the edges roughly symetrical. Unless of course, asymetrical is what you're going for... <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />
JYD #126
Super JYD #13
"Those who would give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety."
- Benjamin Franklin
"A free people ought to be armed."
- George Washington
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Re: Knife Sharping
[Re: marthinus]
#589131
09/09/11 09:12 PM
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Joined: May 2011
Posts: 2,233
Flux
Junk Yard Dog
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Junk Yard Dog
Joined: May 2011
Posts: 2,233 |
I plainly suck at convexing any edge. Really do, so I do a standard V grind at a low angle so that I can easily apply a micro bevel with ceramic rods much like the Idahone ceramic sharpener being discussed or a lansky diamond paddle. Same principles would apply if the grind was convexed (in my ind at least). I have convexed the kitchen knives etc with a rig I build that I use to make knives with as well, but the problem is the finest grit I have been able to find (others on order) is P100 and the shops think that is classified as FINE sandpaper! This is how it started out, a bit more refined and neater at the moment. I am experimenting a bit in convexing an edge on a normal benchstone. Simple principles are to start at a low angle, and increase the angle slightly as one goes through the grits, and then strop. Heck knows if I am getting it right. The only main issue with the Idahone or most V sharpeners out there is not to let the tip role over the stone, this will cause it to become blunt. That is the only tip I can give here from experience. Wow, not that is some real DIY goodness right there!! I love it.
JYD #137
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Re: Knife Sharping
[Re: Flux]
#589132
09/09/11 09:13 PM
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Joined: May 2011
Posts: 2,233
Flux
Junk Yard Dog
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Junk Yard Dog
Joined: May 2011
Posts: 2,233 |
And thank you Horn Dog for explaining that you can use a ceramic rod on a convex edge. I've always wondered, but never wanted to try.
JYD #137
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Re: Knife Sharping
[Re: Flux]
#589133
09/11/11 07:54 PM
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Joined: Jun 2011
Posts: 12,739
gun dog
Junk Yard Dog
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Junk Yard Dog
Joined: Jun 2011
Posts: 12,739 |
and the quest for the perfect edge continues.
Any day I'm above the grass and I'm not a zombie is a good day! JYD#138
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