now *ribbed* for your pleasure!

harkamus

harkamus

Joined
Apr 23, 2007
Messages
4,984
So I have no details right now other than Darrel said "Gunhammer." Could be HTM, could be custom. Whatever it is, I do know it's made from Elmax.

eprfjr.jpg
 
RG_Pippy said:
All I can say is I would hate to have to sharpen that.
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It's actually not all that bad. You wouldn't notice much difference. Kershaw makes some knives that have grooves in them. On the custom side of things, RJ Martin and Brian Tighe offer ribbed knives as well. Darrel says this is only to get some feedback right now.
 
I once read how the ribbed channels are supposed to reduce drag on a cut. The actual cutting edge won't be ribbed. It's after the cut is made that the ribbing might help with reducing drag. It makes sense in theory since the surface area that the cutting medium comes in contact with is reduced. In practice, I'm not sure. Never used a ribbed knife before. I believe they have chef knives now that also come ribbed.
 
harkamus said:
I once read how the ribbed channels are supposed to reduce drag on a cut. The actual cutting edge won't be ribbed. It's after the cut is made that the ribbing might help with reducing drag. It makes sense in theory since the surface area that the cutting medium comes in contact with is reduced. In practice, I'm not sure. Never used a ribbed knife before. I believe they have chef knives now that also come ribbed.
Click to expand...

I like it but I think the friction of the ribs would not work well in cutting with thicker medias. Looks great but doesnt funtion well in other words.
Ive only seen dimples on chef knives that help with making an air pocket between the steel and the food thats being sliced so that the hydratic bond isnt as strong holding the food on the blade while cutting.
I Cant say for sure as I too have never cut with a ribbed knife like darrels knife has but I cant see it working better than a smooth blade IMHO.

Either way its a cool design.
 
I just want to see a more finished blade blank to see how he grinds the edge. This is an interesting project IMO, one I will be keeping an eye on just to see how it develops.
 
harkamus said:
I just want to see a more finished blade blank to see how he grinds the edge. This is an interesting project IMO, one I will be keeping an eye on just to see how it develops.
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and please keep us updated as well. Im curious to see how this turns out.
 
I would buy a couple of those...looks like my Kershaw Groove had sex with my GH2 Radian and this is their illegitimate frankenchild :D Let me know where to sign up to order one :thumbup:
 
Hmm. It's an interesting look, but I think it might be counter-productive to cutting power.

Now, put those ribs on the blade flat and make the primary grind an FFG you've got something there.
 
TheBleedingEdge said:
Hmm. It's an interesting look, but I think it might be counter-productive to cutting power.

Now, put those ribs on the blade flat and make the primary grind an FFG you've got something there.
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A reverse of the picture I posted. Not a bad idea. All feedback is good, which is what Darrel wanted out of this piece.
 
I like the dual grind blade. To me the overall shape it resembles a kershaw offset or a spyderco captain.
Is the hawkbill hollow or flat ground?

I'd like to hear the real science behind the grooves, if they really have an effect, negative or positive or are just for looks?

I think either way it does shave a little weight off the blade.
 
I think I'd have to see the finished product to decide if I liked it. I do, however, like the idea of Elmax in the HTM lineup.
 
I don't know about this. It might be cool in damascus with a pattern that would really be exposed by the grooves.
 
I think it's a GREAT look, as to the functionality, I guess I can't comment on that. I have always loved the looks of Kershaw's grooved knives.
 
Actually I rather like it. It certainly is different and not many will be trying it anytime soon so you have something a little different there. If it was a big folder I might get one....textured titanium handle slabs would round it out.
 
harkamus said:
A reverse of the picture I posted. Not a bad idea. All feedback is good, which is what Darrel wanted out of this piece.
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I like the blade design, the RR is awesome. I would like to have one as my next HTM. That is if I don't end up trying for a 4" AXD 3D. ;)
 
RG_Pippy said:
All I can say is I would hate to have to sharpen that.
Click to expand...
I EDC'd a Kershaw Groove for almost a solid year, sharpening isn't that big a deal if you use something along the lines of a Sharpmaker which makes sharpening the re-curve easier too. The grooves are kinda sharpened away as you sharpen the edge.

harkamus said:
I once read how the ribbed channels are supposed to reduce drag on a cut. The actual cutting edge won't be ribbed. It's after the cut is made that the ribbing might help with reducing drag. It makes sense in theory since the surface area that the cutting medium comes in contact with is reduced. In practice, I'm not sure. Never used a ribbed knife before. I believe they have chef knives now that also come ribbed.
Click to expand...

The grooves do make cutting some items easier, some harder and some you won't notice them at all. For example cutting pieces of garden hose the knife seemed to kinda "fall" through the hose. Cutting seat belts or heavy canvas I never really noticed a difference Peeling an apple or slicing cheese is a nightmare.

wolf5391 said:
I like it but I think the friction of the ribs would not work well in cutting with thicker medias. Looks great but doesnt funtion well in other words.
Ive only seen dimples on chef knives that help with making an air pocket between the steel and the food thats being sliced so that the hydratic bond isnt as strong holding the food on the blade while cutting.
I Cant say for sure as I too have never cut with a ribbed knife like darrels knife has but I cant see it working better than a smooth blade IMHO.

Either way its a cool design.
Click to expand...

In practice they seem to work very well, on the Kershaw Groove the recurve really seem to "hold" the material being cut against the edge while the grooves themselves seem to allow the material being cut to "slide"away from the edge smoother than a regular "flat" blade on certain materials.

The one down side to the Grooves is if you don't use a fairly stain resistant steel you can and probably will get some rust spots down in the grooves where they are really hard to get to and clean up. To some people this is not a big deal on a user but on a "safe queen" it could be a major problem.
 
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