Mike Stewart: Convexed blades with convexed edges hold an edge much longer!

[Cobalt]

This explains it well enough:

 

[Dangerously]

This explains it well enough:

You omitted the picture that marcinek was talking about, where at equal edge angles, the convex grind has "less steel behind the edge". Nice try.

This topic really brings out the crazies.

 

[marcinek]

This explains it well enough:

You have demonstrated that an edge with a more obtuse edge angle has morethan material behind the edge than a more acute one. Thats all.

 

[marcinek]

Actually my last post is incorrect. The figure on the left demonstrates my point quite clearly. Those are a convex (orange) and vee (green) with the same edge angle. And the vee clearly has more material behind the edge.

 

[Sharp_Canadian]

That picture is stupid

 

[marcinek]

That picture is stupid

Care to expand, or is that all you can add?

 

[Dangerously]

Care to expand, or is that all you can add?

We are a terse people.

 

[Natlek]

That's nothing more than marketing the way he wants to sharpen the knives he sells.

Take that with a grain of salt and sharpen your knives they way you want.

Are you sure about that? I can bet with you in whatever you want that convex edge will last much more then V edge . BW , the way he wants to sharpen the knives he sells is more demanding for sharpening then simple V edge

 

[Hevy Devy]

This explains it well enough:

You just proved his (marcinek's) point.. not your squishy argument.

This topic really brings out the crazies.

It does!

 

[Cobalt]

Actually my last post is incorrect. The figure on the left demonstrates my point quite clearly. Those are a convex (orange) and vee (green) with the same edge angle. And the vee clearly has more material behind the edge.

Of the convex not the flat. That is what the pic shows. And that demonstrates my point exactly.

 

[marcinek]

We are a terse people.

Indeed.

 

[Cobalt]

You just proved his (marcinek's) point.. not your squishy argument.



It does!

Squishy? Interesting word from someone with 80 posts. Troll

 

[marcinek]

Of the convex not the flat. That is what the pic shows. And that demonstrates my point exactly.

So the orange is inside the green, but the orange is thicker than the green. You know, my old pants are too tight, but I'm thinner! Youve convinced me!

 

[Cobalt]

The green is a virtual line not the blade. The black line inside the orange which is the thicker convex. Glad you see it now.

 

[knarfeng]

Knock it off, or take it to whine and cheese and duke it out there.

 

[Insipid Moniker]

The green is a virtual line not the blade. The black line inside the orange which is the thicker convex. Glad you see it now.

So they changed which color line represented what from one side of the picture to the other? I have no particular dog in this fight, but that diagram is barely labeled and not indicative of much at all. Without any angle/radius measures I can draw a more obtuse/acute shape inside whatever style of edge you draw.

 

[Cobalt]

So they changed which color line represented what from one side of the picture to the other? I have no particular dog in this fight, but that diagram is barely labeled and not indicative of much at all. Without any angle/radius measures I can draw a more obtuse/acute shape inside whatever style of edge you draw.

Yeah, the left diagram that marcinek looked at is the pic in question. The orange is convex and the black flat like inside it is the straight edge. The diagram plainly shows which one has more metal. Convex.

 

[Sharp_Canadian]

Care to expand, or is that all you can add?

Not really. I just find it a useless picture. The v grinds where sopposed to be represented as grey, while the convex orange. The measured angle is being shown by the green colour. One doesn't even have a v grind shown flat or not for a comparison. That and it only proved your point.

My bad though, more often than not I am actually pretty terse.

 

[Insipid Moniker]

Yeah, the left diagram that marcinek looked at is the pic in question. The orange is convex and the black flat like inside it is the straight edge. The diagram plainly shows which one has more metal. Convex.

And I could easily draw a convex edge inside that black line that had less metal behind the edge. Unless we're comparing apples to apples it's just a meaningless picture.

 

[Cobalt]

And I could easily draw a convex edge inside that black line that had less metal behind the edge. Unless we're comparing apples to apples it's just a meaningless picture.

True, the context would have to be for a blade of the same overall dimensions. Same width. For the same width it is impossible for a flat ground blade to have more metal behind the edge. That was my point.