why are full convex grinds so popular???

[Lil' Foo]

So I hate to be ignorant, but, as a newbie to Busse, what kind of edge did my relatively new ASH come with? Although it didn't come particularly sharp from the factory, it did a good job cutting up the tree that fell on my Jeep in a recent storm!

Depends which ASH you have.
If you have the ASH LE or the ASH GC, they are full height.

If you have the skinny ASH, it's full height convex.

All three came with a V ground cutting edge.

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[Moloko Plus]

V ground cutting edges are the bane of all cutting and are a pain to sharpen and are noticably less efficient and have less strength than any full grind, I believe. I have not tried full flat grinds (I will when I get some knives back from Ban) but I cannot imagine them being noticably less efficient than a full convex grind as the geometry is streamlined. V grinds are anything but streamlined.

While on the subject, Ban mentioned to me that a full flat grind is better for smaller blades but full convex is better for larger blades that do heavy slicing and chopping. So I am guessing this means a full convex grind is stronger and more efficient, but a full flat grind has a cleaner bite?

If anyone could clarify this it would be greatly appreciated.

 

[Hogwash]

For a shorter, thick blade, a full flat grind can go to a zero edge and still have enough edge strength.

A knife like a ASH-1 is so tall that a full flat grind zero edge would be too weak even on the 0.320" thick CG, so the edge is ground in to a v instead and becomes very tough.

On a chopper, weight in the blade can help, a full convex zero edge can give you good edge geometry while still keeping a lot of weight in the blade.

Beyond that, I don't know except that convex edges just plain work, they slice and chop and do a good job at both.

 

[mackied]

I'm in the process of learning how to convex sharpen and can say I already like it better than V grind. Cutting with a convex versus V grind edge is well... just pleasantly different.

 

[kac]

Thanks, everybody, for answering my question. Much appreciated, and helps me learn how to properly sharpen this big guy.

 

[voracious]

they are the easiest edge to maintain. i'can hardly sharpen a v grind but all my zero edges are sick.

 

[DWRW]

I am a huge fan of convex and have been sold on it for a long time now. The cutting isn't always noticeably better, but with comparable sharpness and edge bevels, it is almost never (actually theoretically never) going to be out-cut by a V-grind.

Also, just like a V-Grind, the convex bevel angles can vary. Even if not realistic to measure the angle of a curve, the curves can be near flat for super slicing, but at the expense of toughness or much thick at the expense of a little slicing.

I find stropping to be the best way for me to get hair popping edges.

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