Cool video Mr. Sharpco. As presented, he seems like a thoughtful guy who is really trying to understand sharpening. He could be right or he could be wrong, but he says it in such a convincing way you’d have to think he’s right... Right?
Even a burry, gnarly edge can whittle hair because it’s “catchy”, but from his method I’d think he is working with a very sharp polished edge. That is one guy who REALLY needs to buy an edge tester so he could numerically quantify and share what’s actually happening with his edges. It takes a very sharp polished edge to whittle hair like he shows. Sure would like to see some numbers.
Is it your understanding that what he is saying is that using the wrong abrasive causes carbide particle tear out resulting in an edge less resistant to wear, but using diamonds actually sharpens the carbide particles leaving them intact in the edge resulting in a stronger chip resistant edge? Is he inferring that AO rips carbide particles from the edge but diamonds do not? Is that your take on this video?
He speaks about not completely sharpening an edge resulting in not removing fatigued steel. That makes sense to me especially if the edge is maintained by “steeling” to straighten rolling. I guess he is saying that diamonds will cut better and remove the fatigued metal where AO will not. If that is true, well then, OK, maybe it is. Or, is he saying that some steels cannot be sharpened with AO or the edge will be fatigued?
His stated method was, cut cardboard, strop it. Cut cardboard strop…” That’s vague, but OK, whatever.
Honestly, carbine particle tear out is way beyond my pay grade to comment on. I would think that only SEM imagery could verify carbide tear out, but he says that “I’m not real concerned with what somebody in a lab says”, and that he is absolutely convinced it exists. Well then, I guess it must be absolutely true.
The video states that he cut 4046 in (~337’) of cardboard before the blade would not whittle hair as demonstrated in the video, presumably due to honing with special diamond sauce. I’m curious, what do you think of that? IMHO, I’d sure like to see before/after 337’ of cutting cardboard sharpness numbers and some verification of the results by independent testing.
Even a burry, gnarly edge can whittle hair because it’s “catchy”, but from his method I’d think he is working with a very sharp polished edge. That is one guy who REALLY needs to buy an edge tester so he could numerically quantify and share what’s actually happening with his edges. It takes a very sharp polished edge to whittle hair like he shows. Sure would like to see some numbers.
Is it your understanding that what he is saying is that using the wrong abrasive causes carbide particle tear out resulting in an edge less resistant to wear, but using diamonds actually sharpens the carbide particles leaving them intact in the edge resulting in a stronger chip resistant edge? Is he inferring that AO rips carbide particles from the edge but diamonds do not? Is that your take on this video?
He speaks about not completely sharpening an edge resulting in not removing fatigued steel. That makes sense to me especially if the edge is maintained by “steeling” to straighten rolling. I guess he is saying that diamonds will cut better and remove the fatigued metal where AO will not. If that is true, well then, OK, maybe it is. Or, is he saying that some steels cannot be sharpened with AO or the edge will be fatigued?
His stated method was, cut cardboard, strop it. Cut cardboard strop…” That’s vague, but OK, whatever.
Honestly, carbine particle tear out is way beyond my pay grade to comment on. I would think that only SEM imagery could verify carbide tear out, but he says that “I’m not real concerned with what somebody in a lab says”, and that he is absolutely convinced it exists. Well then, I guess it must be absolutely true.
The video states that he cut 4046 in (~337’) of cardboard before the blade would not whittle hair as demonstrated in the video, presumably due to honing with special diamond sauce. I’m curious, what do you think of that? IMHO, I’d sure like to see before/after 337’ of cutting cardboard sharpness numbers and some verification of the results by independent testing.