Is it actually possible for a knife to do this?

[Phixt]

LOL the thread that refuses to die!!!

 

[Natlek]

25 minutes of a guy chopping wood?
No discussion can survive a video like that.

Well , he say that he ran out of wood .And that the last day he chopping two hours wood but the knife didn't give up to slice paper

 

[mtangent]

Well , he say that he ran out of wood .And that the last day he chopping two hours wood but the knife didn't give up to slice paper

I like your summary far better than the video, thank you.
As to whether a knife can do that,. I don't know. I habitually touch up my edges before they need it.

 

[Motega]

Just saw a video update- Day 3,850- he is still chopping wood, 12 hours a day, knife is still shaving sharp. His wife and kids left sometime during year 7 and the area has been largely deforested.

 

[afishhunter]

The first problem I think of is a wire edge. If you've sharpened properly to a very thin edge, that edge will bend when you cut a few things, and feel dull. What you have to do is break off that wire, that is, that very thin final bevel, and you will have a more robust cutting edge.

That's why we will sharpen to a 30 degree inclusive angle or less, then put a 40 degree microbevel on it for strength.

Odd. When I was taught how to sharpen a knife 60 odd years ago, I was told never pull the blade on the stone. If you only push the blade on the stone, you won't get a wire edge. A wire edge was something to avoid. (I still avoid them.)

 

[gadgetgeek]

Odd. When I was taught how to sharpen a knife 60 odd years ago, I was told never pull the blade on the stone. If you only push the blade on the stone, you won't get a wire edge. A wire edge was something to avoid. (I still avoid them.)

Apart from the necromancy (which isn't on you) the changes to modern steels and sharpening materials means that a push motion can still cause a wire edge to form. Happens more on ceramic stones I think, not a problem with diamonds. So yeah you are right, but as time goes on, sometimes the exceptions start to outnumber the rules.

 

[Motega]

I never heard that term used on boards before (necromancy), it's effing hilarious though. Touche pussycat!